ROLLOUT 4 · rigetticomputing/pyquil
rigetticomputing__pyquil-115
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You are a principal Python software engineer resolving a repository issue in `/workspace`. Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run. ## Critical Environment & Grader Rules 1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`. 2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files. 3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`. 4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks: `pytest path/to/test_file.py -k pattern -q --tb=short --no-header` If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off. 5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission. ## Execution Protocol ### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls) - The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories. - Run a single compound `run_command` with `grep -rn --include="*.py"` to locate: (a) the exact symbols, error strings, or functions from the problem description, (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and (c) the closest existing unit test files under `tests/`. ### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls) - Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests. - Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types. ### Phase 3 — Reproduce Bug in One Call (1 tool call) - Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts. ### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls) - Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`. - Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests. - **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`. ### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls) - Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`. - Run `git status --short && git diff` via `run_command`. Confirm: - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately), - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched), - Minimal, clean diff with valid imports and indentation. - Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 2,552 characters
You are evaluating a software engineering task for repository rigetticomputing/pyquil. Problem Statement: Unequal length PauliSums raise a warning rather than warn If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user. ## Task Budget (Session terminates when any budget is exhausted) - Time allowance: 7.5 minutes - Tool calls allowance: 30 calls - Max loop iterations: 40 turns ## Execution Environment Rules - Single command timeout: 90 seconds (commands exceeding this fail without ending the session) - Command output limit: 5000 characters - File view limit: 150 lines per read_file call - File character limit: 10000 characters per read_file call - Environment is offline (no network/PyPI access). All repository and test dependencies are ALREADY pre-installed. Do NOT attempt to run pip install or download packages. ## Instructions: 0. All source code is under `/workspace`. Do NOT search outside `/workspace` (e.g. `/usr/`, `/wheels/`, system site-packages). If imports fail, the issue is in the source code under `/workspace`, not in missing system packages. 1. Analyze the problem statement and any provided hints carefully to identify all requested script paths, CLI subcommands, or Python modules. 2. Inspect existing codebase conventions and test files before making edits. 3. Verify your implementation using targeted tests or inline assertions before submitting. 4. Call submit_patch only after your implementation is complete and verified. 5. As your final action, you must return a text-only response reporting your completion to terminate the session. ## Workspace Layout The repository is located at `/workspace`. Here is the directory tree (up to 3 levels): ``` ./ACKNOWLEDGEMENTS.md ./LICENSE ./NOTICE ./README.md ./docs ./examples ./pyquil ./pyquil/__init__.py ./pyquil/api.py ./pyquil/gates.py ./pyquil/job_results.py ./pyquil/parametric.py ./pyquil/paulis.py ./pyquil/plots.py ./pyquil/qpu.py ./pyquil/quil.py ./pyquil/quil_atom.py ./pyquil/quilbase.py ./pyquil/resource_manager.py ./pyquil/setup ./pyquil/setup/__init__.py ./pyquil/setup/config.py ./pyquil/slot.py ./pyquil/tests ./pyquil/tests/data ./pyquil/tests/test_forest.py ./pyquil/tests/test_job_results.py ./pyquil/tests/test_parametric.py ./pyquil/tests/test_paulis.py ./pyquil/tests/test_qpu.py ./pyquil/tests/test_quil.py ./pyquil/tests/test_resource_manager.py ./pyquil/tests/test_wavefunction.py ./pyquil/wavefunction.py ./requirements.txt ./setup.cfg ./setup.py ./tox.ini ```
Turn 1at 62 s248 tokens out2,745 prompt tokens
The problem statement says "Unequal length PauliSums raise a warning rather than warn". This is slightly confusingly worded. Let's re-read: "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user." Wait, "raise a warning" usually means `warnings.warn`. But "breaks the control flow" suggests it might be raising an exception (like `UserWarning` but using `raise` instead of `warnings.warn`), or maybe it's raising a `Warning` subclass as an exception. Let's search for `PauliTerm` and see how they are compared. "Unequal length PauliSums" might mean comparing two `PauliTerm` objects or comparing `PauliSum` objects. The problem statement mentions both. I'll start by searching for `PauliTerm` and `PauliSum` in `pyquil/paulis.py`.
TOOL CALL · run_command
{
"command": "grep -rn --include=\"*.py\" -e \"PauliTerm\" -e \"PauliSum\" /workspace/pyquil"
}Result of run_command 5,167 characters
{
"status": "ok",
"stdout": "/workspace/pyquil/api.py:373: :param list operators: A list of PauliTerms. Default is Identity operator.\n/workspace/pyquil/paulis.py:51:class PauliTerm(object):\n/workspace/pyquil/paulis.py:70: raise ValueError(\"coefficient of PauliTerm must be a Number.\")\n/workspace/pyquil/paulis.py:76: Returns the unique identifier string for the PauliTerm (ignoring the coefficient).\n/workspace/pyquil/paulis.py:77: Used in the simplify method of PauliSum.\n/workspace/pyquil/paulis.py:92: if not isinstance(other, (PauliTerm, PauliSum)):\n/workspace/pyquil/paulis.py:93: raise TypeError(\"Can't compare PauliTerm with object of type {}.\".format(type(other)))\n/workspace/pyquil/paulis.py:94: elif isinstance(other, PauliSum):\n/workspace/pyquil/paulis.py:107: The length of the PauliTerm is the number of Pauli operators in the term. A term that\n/workspace/pyquil/paulis.py:114: Properly creates a new PauliTerm, with a completely new dictionary\n/workspace/pyquil/paulis.py:117: new_term = PauliTerm(\"I\", 0, 1.0) # create new object\n/workspace/pyquil/paulis.py:129: \"\"\"Gets all the qubits that this PauliTerm operates on.\n/workspace/pyquil/paulis.py:142: new_term = PauliTerm(\"I\", 0)\n/workspace/pyquil/paulis.py:160: \"\"\"Multiplies this Pauli Term with another PauliTerm, PauliSum, or number according to the\n/workspace/pyquil/paulis.py:163: :param term: (PauliTerm or PauliSum or Number) A term to multiply by.\n/workspace/pyquil/paulis.py:164: :returns: The product of this PauliTerm and term.\n/workspace/pyquil/paulis.py:165: :rtype: PauliTerm\n/workspace/pyquil/paulis.py:169: elif isinstance(term, PauliSum):\n/workspace/pyquil/paulis.py:170: return (PauliSum([self]) * term).simplify()\n/workspace/pyquil/paulis.py:172: new_term = PauliTerm(\"I\", 0, 1.0)\n/workspace/pyquil/paulis.py:181: \"\"\"Multiplies this PauliTerm with another object, probably a number.\n/workspace/pyquil/paulis.py:183: :param other: A number or PauliTerm to multiply by\n/workspace/pyquil/paulis.py:184: :returns: A new PauliTerm\n/workspace/pyquil/paulis.py:185: :rtype: PauliTerm\n/workspace/pyquil/paulis.py:191: \"\"\"Raises this PauliTerm to power.\n/workspace/pyquil/paulis.py:193: :param int power: The power to raise this PauliTerm to.\n/workspace/pyquil/paulis.py:195: :rtype: PauliTerm\n/workspace/pyquil/paulis.py:201: identities = [PauliTerm('I', qubit) for qubit in self.get_qubits()]\n/workspace/pyquil/paulis.py:212: \"\"\"Adds this PauliTerm with another one.\n/workspace/pyquil/paulis.py:214: :param other: A PauliTerm object or a Number\n/workspace/pyquil/paulis.py:215: :returns: A PauliSum object representing the sum of this PauliTerm and other\n/workspace/pyquil/paulis.py:216: :rtype: PauliSum\n/workspace/pyquil/paulis.py:219: return self + PauliTerm(\"I\", 0, other)\n/workspace/pyquil/paulis.py:220: elif isinstance(other, PauliSum):\n/workspace/pyquil/paulis.py:223: new_sum = PauliSum([self, other])\n/workspace/pyquil/paulis.py:227: \"\"\"Adds this PauliTerm with a Number.\n/workspace/pyquil/paulis.py:229: :param other: A PauliTerm object or a Number\n/workspace/pyquil/paulis.py:230: :returns: A new PauliTerm\n/workspace/pyquil/paulis.py:231: :rtype: PauliTerm\n/workspace/pyquil/paulis.py:237: \"\"\"Subtracts a PauliTerm from this one.\n/workspace/pyquil/paulis.py:239: :param other: A PauliTerm object or a Number\n/workspace/pyquil/paulis.py:240: :returns: A PauliSum object representing the difference of this PauliTerm and term\n/workspace/pyquil/paulis.py:241: :rtype: PauliSum\n/workspace/pyquil/paulis.py:246: \"\"\"Subtracts this PauliTerm from a Number or PauliTerm.\n/workspace/pyquil/paulis.py:248: :param other: A PauliTerm object or a Number\n/workspace/pyquil/paulis.py:249: :returns: A PauliSum object representing the difference of this PauliTerm and term\n/workspace/pyquil/paulis.py:250: :rtype: PauliSum\n/workspace/pyquil/paulis.py:266:ID = PauliTerm(\"I\", 0)\n/workspace/pyquil/paulis.py:270:sI = lambda q: PauliTerm(\"I\", q)\n/workspace/pyquil/paulis.py:275::returns: A PauliTerm object\n/workspace/pyquil/paulis.py:276::rtype: PauliTerm\n/workspace/pyquil/paulis.py:278:sX = lambda q: PauliTerm(\"X\", q)\n/workspace/pyquil/paulis.py:283::returns: A PauliTerm object\n/workspace/pyquil/paulis.py:284::rtype: PauliTerm\n/workspace/pyquil/paulis.py:286:sY = lambda q: PauliTerm(\"Y\", q)\n/workspace/pyquil/paulis.py:291::returns: A PauliTerm object\n/workspace/pyquil/paulis.py:292::rtype: PauliTerm\n/workspace/pyquil/paulis.py:294:sZ = lambda q: PauliTerm(\"Z\", q)\n/workspace/pyquil/paulis.py:299::returns: A PauliTerm object\n/workspace/pyquil/paulis.py:300::rtype: PauliTerm\n/workspace/pyquil/paulis.py:306: Change the coefficient of a PauliTerm.\n/workspace/pyquil/paulis.py:308: :param Pauli",
"stderr": "",
"exit_code": 0
}Generated tokens 248 tokens · stopped: STOP
<|channel>thought
The problem statement says "Unequal length PauliSums raise a warning rather than warn". This is slightly confusingly worded. Let's re-read: "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
Wait, "raise a warning" usually means `warnings.warn`. But "breaks the control flow" suggests it might be raising an exception (like `UserWarning` but using `raise` instead of `warnings.warn`), or maybe it's raising a `Warning` subclass as an exception.
Let's search for `PauliTerm` and see how they are compared. "Unequal length PauliSums" might mean comparing two `PauliTerm` objects or comparing `PauliSum` objects. The problem statement mentions both.
I'll start by searching for `PauliTerm` and `PauliSum` in `pyquil/paulis.py`.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn --include="*.py" -e "PauliTerm" -e "PauliSum" /workspace/pyquil<|"|>}<tool_call|><|tool_response>
Turn 2at 72 s147 tokens out4,792 prompt tokens
The `grep` results show `PauliTerm` and `PauliSum` are defined in `pyquil/paulis.py`. I should look at the comparison methods (like `__eq__`, `__lt__`, etc.) in `PauliTerm` and `PauliSum`. The problem statement says "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow". Let's read `pyquil/paulis.py` around where `PauliTerm` is defined and where comparisons happen.
TOOL CALL · read_file
{
"filepath": "pyquil/paulis.py",
"start_line": 1
}Result of read_file 5,777 characters
{
"status": "ok",
"filepath": "pyquil/paulis.py",
"content": "#!/usr/bin/python\n##############################################################################\n# Copyright 2016-2017 Rigetti Computing\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n##############################################################################\n\"\"\"\nModule for working with Pauli algebras.\n\"\"\"\n\nfrom __future__ import division\nfrom itertools import product\nimport numpy as np\nimport copy\nfrom .quil import Program\nfrom .gates import H, RZ, RX, CNOT, X, PHASE\nfrom . import quilbase as pqb\nfrom numbers import Number\nfrom collections import Sequence\nfrom six import integer_types\nfrom six.moves import range\n\nPAULI_OPS = [\"X\", \"Y\", \"Z\", \"I\"]\nPAULI_PROD = {'ZZ': 'I', 'YY': 'I', 'XX': 'I', 'II': 'I',\n 'XY': 'Z', 'XZ': 'Y', 'YX': 'Z', 'YZ': 'X', 'ZX': 'Y',\n 'ZY': 'X', 'IX': 'X', 'IY': 'Y', 'IZ': 'Z',\n 'ZI': 'Z', 'YI': 'Y', 'XI': 'X',\n 'X': 'X', 'Y': 'Y', 'Z': 'Z', 'I': 'I'}\nPAULI_COEFF = {'ZZ': 1.0, 'YY': 1.0, 'XX': 1.0, 'II': 1.0,\n 'XY': 1.0j, 'XZ': -1.0j, 'YX': -1.0j, 'YZ': 1.0j, 'ZX': 1.0j,\n 'ZY': -1.0j, 'IX': 1.0, 'IY': 1.0, 'IZ': 1.0, 'ZI': 1.0,\n 'YI': 1.0, 'XI': 1.0,\n 'X': 1.0, 'Y': 1.0, 'Z': 1.0, 'I': 1.0}\n\n\nclass UnequalLengthWarning(Warning):\n def __init__(self, *args, **kwargs):\n super(UnequalLengthWarning, self).__init__(*args, **kwargs)\n\n\nclass PauliTerm(object):\n \"\"\"A term is a product of Pauli operators operating on different qubits.\n \"\"\"\n\n def __init__(self, op, index, coefficient=1.0):\n \"\"\" Create a new Pauli Term with a Pauli operator at a particular index and a leading\n coefficient.\n\n :param string op: The Pauli operator as a string \"X\", \"Y\", \"Z\", or \"I\"\n :param int index: The qubit index that that operator is applied to.\n :param float coefficient: The coefficient multiplying the operator, e.g. 1.5 * Z_1\n \"\"\"\n assert op in PAULI_OPS\n assert isinstance(index, integer_types) and index >= 0\n\n self._ops = {}\n if op != \"I\":\n self._ops[index] = op\n if not isinstance(coefficient, Number):\n raise ValueError(\"coefficient of PauliTerm must be a Number.\")\n self.coefficient = complex(coefficient)\n self._id = None\n\n def id(self):\n \"\"\"\n Returns the unique identifier string for the PauliTerm (ignoring the coefficient).\n Used in the simplify method of PauliSum.\n\n :return: The unique identifier for this term.\n :rtype: string\n \"\"\"\n if self._id is not None:\n return self._id\n else:\n s = \"\"\n for index in sorted(self._ops.keys()):\n s += \"%s%s\" % (self[index], index)\n self._id = s\n return s\n\n def __eq__(self, other):\n if not isinstance(other, (PauliTerm, PauliSum)):\n raise TypeError(\"Can't compare PauliTerm with object of type {}.\".format(type(other)))\n elif isinstance(other, PauliSum):\n return other == self\n else:\n return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)\n\n def __ne__(self, other):\n # x!=y and x<>y call __ne__() instead of negating __eq__\n # This is only a weirdness in python2 as in python 3 __ne__ defaults to the inversion of\n # __eq__\n return not self.__eq__(other)\n\n def __len__(self):\n \"\"\"\n The length of the PauliTerm is the number of Pauli operators in the term. A term that\n consists of only a scalar has a length of zero.\n \"\"\"\n return len(self._ops)\n\n def copy(self):\n \"\"\"\n Properly creates a new PauliTerm, with a completely new dictionary\n of operators\n \"\"\"\n new_term = PauliTerm(\"I\", 0, 1.0) # create new object\n # manually copy all attributes over\n for key in self.__dict__.keys():\n val = self.__dict__[key]\n if isinstance(val, (dict, list, set)): # mutable types\n new_term.__dict__[key] = copy.copy(val)\n else: # immutable types\n new_term.__dict__[key] = val\n\n return new_term\n\n def get_qubits(self):\n \"\"\"Gets all the qubits that this PauliTerm operates on.\n \"\"\"\n # sort the keys to get a deterministic iteration order over qubits\n return sorted(self._ops.keys())\n\n def __getitem__(self, i):\n return self._ops.get(i, \"I\")\n\n def __iter__(self):\n for i in self.get_qubits():\n yield i, self[i]\n\n def _multiply_factor(self, factor, index):\n new_term = PauliTerm(\"I\", 0)\n new_coeff = self.coefficient\n new_ops = self._ops.copy()\n\n ops = self[index] + factor\n new_op = PAULI_PROD[ops]\n if new_op != \"I\":\n new_ops[index] = new_op\n else:",
"start_line": 1,
"end_line": 150,
"total_lines": 795,
"is_truncated": true
}Generated tokens 147 tokens · stopped: STOP
The `grep` results show `PauliTerm` and `PauliSum` are defined in `pyquil/paulis.py`. I should look at the comparison methods (like `__eq__`, `__lt__`, etc.) in `PauliTerm` and `PauliSum`.
The problem statement says "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow".
Let's read `pyquil/paulis.py` around where `PauliTerm` is defined and where comparisons happen.
<channel|><|tool_call>call:read_file{filepath:<|"|>pyquil/paulis.py<|"|>,start_line:1}<tool_call|><|tool_response>
Turn 3at 78 s80 tokens out6,724 prompt tokens
I see `UnequalLengthWarning` defined on line 31. I need to find where it's used. I'll search for `UnequalLengthWarning` in `pyquil/paulis.py`.
TOOL CALL · run_command
{
"command": "grep -n \"UnequalLengthWarning\" /workspace/pyquil/paulis.py"
}Result of run_command 272 characters
{
"status": "ok",
"stdout": "46:class UnequalLengthWarning(Warning):\n48: super(UnequalLengthWarning, self).__init__(*args, **kwargs)\n349: raise UnequalLengthWarning(\"These PauliSums have a different number of terms.\")\n",
"stderr": "",
"exit_code": 0
}Generated tokens 80 tokens · stopped: STOP
I see `UnequalLengthWarning` defined on line 31. I need to find where it's used. I'll search for `UnequalLengthWarning` in `pyquil/paulis.py`.<channel|><|tool_call>call:run_command{command:<|"|>grep -n "UnequalLengthWarning" /workspace/pyquil/paulis.py<|"|>}<tool_call|><|tool_response>
Turn 4at 85 s100 tokens out6,902 prompt tokens
Found it! Line 349: `raise UnequalLengthWarning("These PauliSums have a different number of terms.")`.
The problem is that it's using `raise` instead of `warnings.warn`.
Let's look at the context of line 349.
TOOL CALL · read_file
{
"end_line": 400,
"filepath": "pyquil/paulis.py",
"start_line": 300
}Result of read_file 3,946 characters
{
"status": "ok",
"filepath": "pyquil/paulis.py",
"content": ":rtype: PauliTerm\n\"\"\"\n\n\ndef term_with_coeff(term, coeff):\n \"\"\"\n Change the coefficient of a PauliTerm.\n\n :param PauliTerm term: A PauliTerm object\n :param Number coeff: The coefficient to set on the PauliTerm\n :returns: A new PauliTerm that duplicates term but sets coeff\n :rtype: PauliTerm\n \"\"\"\n if not isinstance(coeff, Number):\n raise ValueError(\"coeff must be a Number\")\n new_pauli = term.copy()\n # We cast to a complex number to ensure that internally the coefficients remain compatible.\n new_pauli.coefficient = complex(coeff)\n return new_pauli\n\n\nclass PauliSum(object):\n \"\"\"A sum of one or more PauliTerms.\n \"\"\"\n\n def __init__(self, terms):\n \"\"\"\n :param Sequence terms: A Sequence of PauliTerms.\n \"\"\"\n if not (isinstance(terms, Sequence) and\n all([isinstance(term, PauliTerm) for term in terms])):\n raise ValueError(\"PauliSum's are currently constructed from Sequences of PauliTerms.\")\n if len(terms) == 0:\n self.terms = [0.0 * ID]\n else:\n self.terms = terms\n\n def __eq__(self, other):\n \"\"\"Equality testing to see if two PauliSum's are equivalent.\n\n :param PauliSum other: The PauliSum to compare this PauliSum with.\n :return: True if other is equivalent to this PauliSum, False otherwise.\n :rtype: bool\n \"\"\"\n if not isinstance(other, (PauliTerm, PauliSum)):\n raise TypeError(\"Can't compare PauliSum with object of type {}.\".format(type(other)))\n elif isinstance(other, PauliTerm):\n return self == PauliSum(other)\n elif len(self.terms) != len(other.terms):\n raise UnequalLengthWarning(\"These PauliSums have a different number of terms.\")\n return False\n return all([term == other.terms[i] for i, term in enumerate(self.terms)])\n\n def __ne__(self, other):\n \"\"\"Inequality testing to see if two PauliSum's are not equivalent.\n\n :param PauliSum other: The PauliSum to compare this PauliSum with.\n :return: False if other is equivalent to this PauliSum, True otherwise.\n :rtype: bool\n \"\"\"\n return not self == other\n\n def __str__(self):\n return \" + \".join([str(term) for term in self.terms])\n\n def __len__(self):\n \"\"\"\n The length of the PauliSum is the number of PauliTerms in the sum.\n \"\"\"\n return len(self.terms)\n\n def __getitem__(self, item):\n \"\"\"\n :param int item: The index of the term in the sum to return\n :return: The PauliTerm at the index-th position in the PauliSum\n :rtype: PauliTerm\n \"\"\"\n return self.terms[item]\n\n def __iter__(self):\n return self.terms.__iter__()\n\n def __mul__(self, other):\n \"\"\"\n Multiplies together this PauliSum with PauliSum, PauliTerm or Number objects. The new term\n is then simplified according to the Pauli Algebra rules.\n\n :param other: a PauliSum, PauliTerm or Number object\n :return: A new PauliSum object given by the multiplication.\n :rtype: PauliSum\n \"\"\"\n if not isinstance(other, (Number, PauliTerm, PauliSum)):\n raise ValueError(\"Cannot multiply PauliSum by term that is not a Number, PauliTerm, or\"\n \"PauliSum\")\n elif isinstance(other, PauliSum):\n other_terms = other.terms\n else:\n other_terms = [other]\n new_terms = [lterm * rterm for lterm, rterm in product(self.terms, other_terms)]\n new_sum = PauliSum(new_terms)\n return new_sum.simplify()",
"start_line": 300,
"end_line": 400,
"total_lines": 795,
"is_truncated": false
}Generated tokens 100 tokens · stopped: STOP
Found it! Line 349: `raise UnequalLengthWarning("These PauliSums have a different number of terms.")`.
The problem is that it's using `raise` instead of `warnings.warn`.
Let's look at the context of line 349.
<channel|><|tool_call>call:read_file{filepath:<|"|>pyquil/paulis.py<|"|>,start_line:300,end_line:400}<tool_call|><|tool_response>
Turn 5at 120 s436 tokens out8,110 prompt tokens
In `PauliSum.__eq__`:
```python
elif len(self.terms) != len(other.terms):
raise UnequalLengthWarning("These PauliSums have a different number of terms.")
return False
```
The `raise UnequalLengthWarning(...)` will raise an exception, which breaks the control flow. It should use `warnings.warn` and then `return False`.
Wait, I need to see if `warnings` is imported. Looking at the imports in `pyquil/paulis.py` (from the first `read_file` call):
```python
from __future__ import division
from itertools import product
import numpy as np
import copy
from .quil import Program
from .gates import H, RZ, RX, CNOT, X, PHASE
from . import quilbase as pqb
from numbers import Number
from collections import Sequence
from six import integer_types
from six.moves import range
```
`warnings` is NOT imported. I will need to import it.
Let's create a reproduction script to confirm the issue.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nfrom pyquil.paulis import PauliTerm, PauliSum\nimport pytest\n\ndef test_paulisum_eq_unequal_length():\n term1 = PauliTerm(\"X\", 0)\n term2 = PauliTerm(\"X\", 1)\n sum1 = PauliSum([term1])\n sum2 = PauliSum([term1, term2])\n \n print(\"Comparing sum1 and sum2...\")\n try:\n result = (sum1 == sum2)\n print(f\"Result of comparison: {result}\")\n except Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\n\nif __name__ == \"__main__\":\n test_paulisum_eq_unequal_length()\nPY\n"
}Result of run_command 179 characters
{
"status": "ok",
"stdout": "Comparing sum1 and sum2...\nCaught exception: UnequalLengthWarning: These PauliSums have a different number of terms.\n",
"stderr": "",
"exit_code": 0
}Generated tokens 436 tokens · stopped: STOP
In `PauliSum.__eq__`:
```python
elif len(self.terms) != len(other.terms):
raise UnequalLengthWarning("These PauliSums have a different number of terms.")
return False
```
The `raise UnequalLengthWarning(...)` will raise an exception, which breaks the control flow. It should use `warnings.warn` and then `return False`.
Wait, I need to see if `warnings` is imported. Looking at the imports in `pyquil/paulis.py` (from the first `read_file` call):
```python
from __future__ import division
from itertools import product
import numpy as np
import copy
from .quil import Program
from .gates import H, RZ, RX, CNOT, X, PHASE
from . import quilbase as pqb
from numbers import Number
from collections import Sequence
from six import integer_types
from six.moves import range
```
`warnings` is NOT imported. I will need to import it.
Let's create a reproduction script to confirm the issue.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
from pyquil.paulis import PauliTerm, PauliSum
import pytest
def test_paulisum_eq_unequal_length():
term1 = PauliTerm("X", 0)
term2 = PauliTerm("X", 1)
sum1 = PauliSum([term1])
sum2 = PauliSum([term1, term2])
print("Comparing sum1 and sum2...")
try:
result = (sum1 == sum2)
print(f"Result of comparison: {result}")
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
if __name__ == "__main__":
test_paulisum_eq_unequal_length()
PY
<|"|>}<tool_call|><|tool_response>
Turn 6at 139 s297 tokens out8,611 prompt tokens
Confirmed. It raises `UnequalLengthWarning`, which is a subclass of `Warning`. Since it's raised with `raise`, it's treated as an exception.
Now I will:
1. Import `warnings` in `pyquil/paulis.py`.
2. Replace `raise UnequalLengthWarning(...)` with `warnings.warn(UnequalLengthWarning(...))`.
3. Ensure it returns `False`.
Let's check if there are any other places where `UnequalLengthWarning` is raised. The `grep` only showed one: line 349.
Wait, I should check if `UnequalLengthWarning` is defined correctly for `warnings.warn`.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
This is a standard way to define a custom warning.
Let's prepare the fix.
First, add `import warnings` at the top of `pyquil/paulis.py`.
Then, modify `PauliSum.__eq__`.
Actually, let's check where to add the import.
TOOL CALL · read_file
{
"end_line": 30,
"filepath": "pyquil/paulis.py",
"start_line": 1
}Result of read_file 1,299 characters
{
"status": "ok",
"filepath": "pyquil/paulis.py",
"content": "#!/usr/bin/python\n##############################################################################\n# Copyright 2016-2017 Rigetti Computing\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n##############################################################################\n\"\"\"\nModule for working with Pauli algebras.\n\"\"\"\n\nfrom __future__ import division\nfrom itertools import product\nimport numpy as np\nimport copy\nfrom .quil import Program\nfrom .gates import H, RZ, RX, CNOT, X, PHASE\nfrom . import quilbase as pqb\nfrom numbers import Number\nfrom collections import Sequence\nfrom six import integer_types",
"start_line": 1,
"end_line": 30,
"total_lines": 795,
"is_truncated": false
}Generated tokens 297 tokens · stopped: STOP
Confirmed. It raises `UnequalLengthWarning`, which is a subclass of `Warning`. Since it's raised with `raise`, it's treated as an exception.
Now I will:
1. Import `warnings` in `pyquil/paulis.py`.
2. Replace `raise UnequalLengthWarning(...)` with `warnings.warn(UnequalLengthWarning(...))`.
3. Ensure it returns `False`.
Let's check if there are any other places where `UnequalLengthWarning` is raised. The `grep` only showed one: line 349.
Wait, I should check if `UnequalLengthWarning` is defined correctly for `warnings.warn`.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
This is a standard way to define a custom warning.
Let's prepare the fix.
First, add `import warnings` at the top of `pyquil/paulis.py`.
Then, modify `PauliSum.__eq__`.
Actually, let's check where to add the import.
<channel|><|tool_call>call:read_file{end_line:30,filepath:<|"|>pyquil/paulis.py<|"|>,start_line:1}<tool_call|><|tool_response>
Turn 7at 161 s375 tokens out9,267 prompt tokens
I'll add `import warnings` around line 22.
And then modify `PauliSum.__eq__`.
```python
elif len(self.terms) != len(other.terms):
raise UnequalLengthWarning("These PauliSums have a different number of terms.")
return False
```
to
```python
elif len(self.terms) != len(other.terms):
warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)
return False
```
Wait, `warnings.warn` takes the message first, then the warning category.
Let's check the documentation for `warnings.warn(message, category=Warning, ...)`
Yes, it is `warnings.warn(message, category)`.
Wait, if I use `warnings.warn(UnequalLengthWarning("..."))`, it might not be quite right if `UnequalLengthWarning` is a category.
Normally: `warnings.warn("message", UnequalLengthWarning)`
Let's see how `UnequalLengthWarning` was used: `raise UnequalLengthWarning("...")`.
In that case, `UnequalLengthWarning` is the exception class.
So: `warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)` is correct.
Let's double check the imports again.
Line 22 is `from .quil import Program`. I'll add it around there.
TOOL CALL · edit_file
{
"filepath": "pyquil/paulis.py",
"new_string": "import copy\nimport warnings\nfrom .quil import Program",
"old_string": "import copy\nfrom .quil import Program"
}Result of edit_file 381 characters
{
"status": "ok",
"filepath": "pyquil/paulis.py",
"occurrences": 1,
"strategy": "exact",
"diff": "--- a/pyquil/paulis.py\n+++ b/pyquil/paulis.py\n@@ -22,6 +22,7 @@\n from itertools import product\n import numpy as np\n import copy\n+import warnings\n from .quil import Program\n from .gates import H, RZ, RX, CNOT, X, PHASE\n from . import quilbase as pqb\n",
"is_truncated": false
}Generated tokens 375 tokens · stopped: STOP
I'll add `import warnings` around line 22.
And then modify `PauliSum.__eq__`.
```python
elif len(self.terms) != len(other.terms):
raise UnequalLengthWarning("These PauliSums have a different number of terms.")
return False
```
to
```python
elif len(self.terms) != len(other.terms):
warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)
return False
```
Wait, `warnings.warn` takes the message first, then the warning category.
Let's check the documentation for `warnings.warn(message, category=Warning, ...)`
Yes, it is `warnings.warn(message, category)`.
Wait, if I use `warnings.warn(UnequalLengthWarning("..."))`, it might not be quite right if `UnequalLengthWarning` is a category.
Normally: `warnings.warn("message", UnequalLengthWarning)`
Let's see how `UnequalLengthWarning` was used: `raise UnequalLengthWarning("...")`.
In that case, `UnequalLengthWarning` is the exception class.
So: `warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)` is correct.
Let's double check the imports again.
Line 22 is `from .quil import Program`. I'll add it around there.
<channel|><|tool_call>call:edit_file{filepath:<|"|>pyquil/paulis.py<|"|>,new_string:<|"|>import copy
import warnings
from .quil import Program<|"|>,old_string:<|"|>import copy
from .quil import Program<|"|>}<tool_call|><|tool_response>
Turn 8at 168 s133 tokens out9,795 prompt tokens
Now edit the `__eq__` method in `PauliSum`.
TOOL CALL · edit_file
{
"filepath": "pyquil/paulis.py",
"new_string": " elif len(self.terms) != len(other.terms):\n warnings.warn(\\\"These PauliSums have a different number of terms.\\\", UnequalLengthWarning)\n return False",
"old_string": " elif len(self.terms) != len(other.terms):\n raise UnequalLengthWarning(\\\"These PauliSums have a different number of terms.\\\")\n return False"
}Result of edit_file 652 characters
{
"status": "ok",
"filepath": "pyquil/paulis.py",
"occurrences": 1,
"strategy": "unescaped",
"diff": "--- a/pyquil/paulis.py\n+++ b/pyquil/paulis.py\n@@ -347,7 +347,7 @@\n elif isinstance(other, PauliTerm):\n return self == PauliSum(other)\n elif len(self.terms) != len(other.terms):\n- raise UnequalLengthWarning(\"These PauliSums have a different number of terms.\")\n+ warnings.warn(\"These PauliSums have a different number of terms.\", UnequalLengthWarning)\n return False\n return all([term == other.terms[i] for i, term in enumerate(self.terms)])\n \n",
"is_truncated": false
}Generated tokens 133 tokens · stopped: STOP
Now edit the `__eq__` method in `PauliSum`.
<channel|><|tool_call>call:edit_file{filepath:<|"|>pyquil/paulis.py<|"|>,new_string:<|"|> elif len(self.terms) != len(other.terms):
warnings.warn(\"These PauliSums have a different number of terms.\", UnequalLengthWarning)
return False<|"|>,old_string:<|"|> elif len(self.terms) != len(other.terms):
raise UnequalLengthWarning(\"These PauliSums have a different number of terms.\")
return False<|"|>}<tool_call|><|tool_response>
Turn 9at 185 s338 tokens out10,142 prompt tokens
Now I will run the reproduction script again to make sure it doesn't raise an exception and returns `False`. I'll also use `pytest.warns` (via inline pytest) or just check the stdout. Actually, let's use a script that specifically checks for the warning.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport warnings\nfrom pyquil.paulis import PauliTerm, PauliSum\n\ndef test_paulisum_eq_unequal_length():\n term1 = PauliTerm(\"X\", 0)\n term2 = PauliTerm(\"X\", 1)\n sum1 = PauliSum([term1])\n sum2 = PauliSum([term1, term2])\n \n print(\"Comparing sum1 and sum2...\")\n with warnings.catch_warnings(record=True) as w:\n warnings.simplefilter(\"always\")\n try:\n result = (sum1 == sum2)\n print(f\"Result of comparison: {result}\")\n if len(w) > 0:\n print(f\"Warning caught: {w[-1].message}\")\n else:\n print(\"No warning caught\")\n except Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\n import traceback\n traceback.print_exc()\n\nif __name__ == \"__main__\":\n test_paulisum_eq_unequal_length()\nPY\n"
}Result of run_command 184 characters
{
"status": "ok",
"stdout": "Comparing sum1 and sum2...\nResult of comparison: False\nWarning caught: These PauliSums have a different number of terms.\n",
"stderr": "",
"exit_code": 0
}Generated tokens 338 tokens · stopped: STOP
Now I will run the reproduction script again to make sure it doesn't raise an exception and returns `False`. I'll also use `pytest.warns` (via inline pytest) or just check the stdout.
Actually, let's use a script that specifically checks for the warning.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import warnings
from pyquil.paulis import PauliTerm, PauliSum
def test_paulisum_eq_unequal_length():
term1 = PauliTerm("X", 0)
term2 = PauliTerm("X", 1)
sum1 = PauliSum([term1])
sum2 = PauliSum([term1, term2])
print("Comparing sum1 and sum2...")
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
try:
result = (sum1 == sum2)
print(f"Result of comparison: {result}")
if len(w) > 0:
print(f"Warning caught: {w[-1].message}")
else:
print("No warning caught")
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
import traceback
traceback.print_exc()
if __name__ == "__main__":
test_paulisum_eq_unequal_length()
PY
<|"|>}<tool_call|><|tool_response>
Turn 10at 190 s78 tokens out10,547 prompt tokens
The fix works for the reproduction case. Now let's check the existing tests in `pyquil/tests/test_paulis.py` to make sure we didn't break anything.
TOOL CALL · run_command
{
"command": "pytest pyquil/tests/test_paulis.py -q --tb=short --no-header"
}Result of run_command 2,715 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": "....................................F [100%]\n=================================== FAILURES ===================================\n______________________________ test_sum_equality _______________________________\npyquil/tests/test_paulis.py:542: in test_sum_equality\n assert pauli_sum != pauli_sum + sZ(0)\nE Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>\n=============================== warnings summary ===============================\n../pyquil/pyquil/paulis.py:30\n /pyquil/pyquil/paulis.py:30: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3,and in 3.9 it will stop working\n from collections import Sequence\n\npyquil/tests/test_paulis.py::test_sum_equality\n /pyquil/pyquil/paulis.py:350: UnequalLengthWarning: These PauliSums have a different number of terms.\n warnings.warn(\"These PauliSums have a different number of terms.\", UnequalLengthWarning)\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED pyquil/tests/test_paulis.py::test_sum_equality - Failed: DID NOT RAISE...\n1 failed, 36 passed, 2 warnings in 0.31s\n",
"details": {
"stdout": "....................................F [100%]\n=================================== FAILURES ===================================\n______________________________ test_sum_equality _______________________________\npyquil/tests/test_paulis.py:542: in test_sum_equality\n assert pauli_sum != pauli_sum + sZ(0)\nE Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>\n=============================== warnings summary ===============================\n../pyquil/pyquil/paulis.py:30\n /pyquil/pyquil/paulis.py:30: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3,and in 3.9 it will stop working\n from collections import Sequence\n\npyquil/tests/test_paulis.py::test_sum_equality\n /pyquil/pyquil/paulis.py:350: UnequalLengthWarning: These PauliSums have a different number of terms.\n warnings.warn(\"These PauliSums have a different number of terms.\", UnequalLengthWarning)\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED pyquil/tests/test_paulis.py::test_sum_equality - Failed: DID NOT RAISE...\n1 failed, 36 passed, 2 warnings in 0.31s\n",
"stderr": "",
"exit_code": 1
}
}Generated tokens 78 tokens · stopped: STOP
The fix works for the reproduction case. Now let's check the existing tests in `pyquil/tests/test_paulis.py` to make sure we didn't break anything.
<channel|><|tool_call>call:run_command{command:<|"|>pytest pyquil/tests/test_paulis.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Turn 11at 236 s723 tokens out11,390 prompt tokens
Wait, `test_sum_equality` failed because it expected `UnequalLengthWarning` to be RAISED. ```python ______________________________ test_sum_equality _______________________________\npyquil/tests/test_paulis.py:542: in test_sum_equality\n assert pauli_sum != pauli_sum + sZ(0)\nE Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'> ``` Wait, look at the code in `test_paulis.py` line 542. The error message says `Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>`. This means the test was specifically checking that `UnequalLengthWarning` is raised. But the problem statement says: "Unequal length PauliSums raise a warning rather than warn. If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user." Wait, "raise a warning rather than warn" is confusingly worded, but the second sentence is clear: "they raise a warning which breaks the control flow- it should just warn the user." In Python, `raise Warning(...)` raises an exception, while `warnings.warn(...)` issues a warning without breaking control flow. So the current tests are actually testing for the bug (that it raises an exception)! The rule 2 says: "Protected Grading Paths: Before running official verification, the grading harness strips and reverts all changes to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files." This means I cannot change the tests. If the test is testing that it RAISED, and I change it to WARN, the test WILL fail. Wait, if the test expects it to RAISE and I change it to WARN, and the grader reverts my changes to tests, the test will still expect it to RAISE. This means the grader might be testing the bug as a requirement? No, that doesn't make sense. The problem statement says it's a bug: "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user." Let me re-read the problem statement carefully. "Unequal length PauliSums raise a warning rather than warn" Maybe this means it's currently `raise UnequalLengthWarning` and it should be `warnings.warn`. If the tests are testing that it raises a warning (as an exception), then the tests are wrong. But I can't change the tests. Wait, if I can't change the tests, how can I pass? Maybe the test `test_sum_equality` uses `pytest.raises(UnequalLengthWarning)`? Let's look at `pyquil/tests/test_paulis.py` around line 542.
TOOL CALL · read_file
{
"end_line": 550,
"filepath": "pyquil/tests/test_paulis.py",
"start_line": 530
}Result of read_file 870 characters
{
"status": "ok",
"filepath": "pyquil/tests/test_paulis.py",
"content": "\ndef test_term_with_coeff():\n assert PauliTerm('X', 0, 1.j) == term_with_coeff(sX(0), 1.j)\n assert PauliTerm('X', 0, -1.0) == term_with_coeff(sX(0), -1)\n with pytest.raises(ValueError):\n term_with_coeff(sI(0), None)\n\n\ndef test_sum_equality():\n pauli_sum = sY(0) - sX(0)\n assert pauli_sum != 2 * pauli_sum\n with pytest.raises(UnequalLengthWarning):\n assert pauli_sum != pauli_sum + sZ(0)\n with pytest.raises(UnequalLengthWarning):\n assert pauli_sum + sZ(0) != pauli_sum\n assert pauli_sum != sY(1) - sX(1)\n assert pauli_sum == -1.0 * sX(0) + sY(0)\n assert pauli_sum == pauli_sum * 1.0\n with pytest.raises(TypeError):\n assert pauli_sum != 0",
"start_line": 530,
"end_line": 549,
"total_lines": 549,
"is_truncated": false
}Generated tokens 723 tokens · stopped: STOP
Wait, `test_sum_equality` failed because it expected `UnequalLengthWarning` to be RAISED.
```python
______________________________ test_sum_equality _______________________________\npyquil/tests/test_paulis.py:542: in test_sum_equality\n assert pauli_sum != pauli_sum + sZ(0)\nE Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>
```
Wait, look at the code in `test_paulis.py` line 542.
The error message says `Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>`.
This means the test was specifically checking that `UnequalLengthWarning` is raised.
But the problem statement says: "Unequal length PauliSums raise a warning rather than warn. If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
Wait, "raise a warning rather than warn" is confusingly worded, but the second sentence is clear: "they raise a warning which breaks the control flow- it should just warn the user."
In Python, `raise Warning(...)` raises an exception, while `warnings.warn(...)` issues a warning without breaking control flow.
So the current tests are actually testing for the bug (that it raises an exception)!
The rule 2 says: "Protected Grading Paths: Before running official verification, the grading harness strips and reverts all changes to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files."
This means I cannot change the tests. If the test is testing that it RAISED, and I change it to WARN, the test WILL fail.
Wait, if the test expects it to RAISE and I change it to WARN, and the grader reverts my changes to tests, the test will still expect it to RAISE. This means the grader might be testing the bug as a requirement?
No, that doesn't make sense. The problem statement says it's a bug: "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
Let me re-read the problem statement carefully.
"Unequal length PauliSums raise a warning rather than warn"
Maybe this means it's currently `raise UnequalLengthWarning` and it should be `warnings.warn`.
If the tests are testing that it raises a warning (as an exception), then the tests are wrong. But I can't change the tests.
Wait, if I can't change the tests, how can I pass?
Maybe the test `test_sum_equality` uses `pytest.raises(UnequalLengthWarning)`?
Let's look at `pyquil/tests/test_paulis.py` around line 542.
<channel|><|tool_call>call:read_file{end_line:550,filepath:<|"|>pyquil/tests/test_paulis.py<|"|>,start_line:530}<tool_call|><|tool_response>
Turn 12at 292 s910 tokens out12,477 prompt tokens
Yes:
```python
with pytest.raises(UnequalLengthWarning):
assert pauli_sum != pauli_sum + sZ(0)
```
This test specifically expects `UnequalLengthWarning` to be raised as an exception.
And the problem statement says it's a bug that it "breaks the control flow".
If I fix the bug, this test will fail. If I don't fix the bug, I'm not fulfilling the task.
Is it possible that "warn the user" means something else?
No, "breaks the control flow" almost certainly refers to the fact that `raise` stops execution.
Wait, let me read the problem description again.
"Unequal length PauliSums raise a warning rather than warn"
"If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
The tests are definitely testing for the bug.
Since I cannot change the tests, and I must fix the bug, what should I do?
Maybe I should check if there's a way to make `warnings.warn` raise an exception in the test environment? No, that's usually done by setting `warnings` filters to 'error'. But I can't change the test code.
Could the problem be that it should use `warnings.warn(..., stacklevel=...)` or something? No, that doesn't make sense.
What if I use a custom warning that behaves like an exception if something is set? No, that's too complex.
Wait, let me look at `pyquil/paulis.py` again.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
If I change `raise UnequalLengthWarning(...)` to `warnings.warn(UnequalLengthWarning(...))`, it will not raise.
Is it possible the task intended for me to change the tests too?
"Before running official verification, the grading harness strips and reverts all changes to `tests/`, ... Every part of your fix MUST reside in non-test production source files."
This is a very strict rule.
Maybe the test is not `pytest.raises(UnequalLengthWarning)`?
Let me look at the output again.
`E Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>`
Yes, it is `pytest.raises`.
This is a paradox. If I fix the bug, the tests fail. If I don't fix the bug, I didn't fix the bug.
Let me re-read the problem statement one more time.
"Unequal length PauliSums raise a warning rather than warn"
Wait... "raise a warning rather than warn".
Maybe it means it should RAISE a Warning? But it already does that.
Wait... "raise a warning rather than warn".
If I "warn", I use `warnings.warn`.
If I "raise a warning", I use `raise Warning`.
So "raise a warning rather than warn" sounds like it's complaining that it's CURRENTLY raising a warning instead of just warning.
And "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
This confirms it: it should change from `raise` to `warn`.
Could the tests be part of the environment and I'm supposed to ignore them if they fail?
"Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run."
Hidden tests. Maybe the hidden tests are fixed, but the one in `pyquil/tests/test_paulis.py` is not?
But usually, existing tests are also part of the regression suite.
Let me double check if there are any other places where `UnequalLengthWarning` is mentioned.
TOOL CALL · run_command
{
"command": "grep -rn \"UnequalLengthWarning\" /workspace/pyquil"
}Result of run_command 863 characters
{
"status": "ok",
"stdout": "/workspace/pyquil/paulis.py:47:class UnequalLengthWarning(Warning):\n/workspace/pyquil/paulis.py:49: super(UnequalLengthWarning, self).__init__(*args, **kwargs)\n/workspace/pyquil/paulis.py:350: warnings.warn(\"These PauliSums have a different number of terms.\", UnequalLengthWarning)\n/workspace/pyquil/tests/test_paulis.py:19:from pyquil.paulis import (PauliTerm, PauliSum, exponential_map, ID, UnequalLengthWarning,\n/workspace/pyquil/tests/test_paulis.py:541: with pytest.raises(UnequalLengthWarning):\n/workspace/pyquil/tests/test_paulis.py:543: with pytest.raises(UnequalLengthWarning):\n",
"stderr": "grep: /workspace/pyquil/__pycache__/paulis.cpython-37.pyc: binary file matches\ngrep: /workspace/pyquil/tests/__pycache__/test_paulis.cpython-37-pytest-7.4.4.pyc: binary file matches\n",
"exit_code": 0
}Generated tokens 910 tokens · stopped: STOP
Yes:
```python
with pytest.raises(UnequalLengthWarning):
assert pauli_sum != pauli_sum + sZ(0)
```
This test specifically expects `UnequalLengthWarning` to be raised as an exception.
And the problem statement says it's a bug that it "breaks the control flow".
If I fix the bug, this test will fail. If I don't fix the bug, I'm not fulfilling the task.
Is it possible that "warn the user" means something else?
No, "breaks the control flow" almost certainly refers to the fact that `raise` stops execution.
Wait, let me read the problem description again.
"Unequal length PauliSums raise a warning rather than warn"
"If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
The tests are definitely testing for the bug.
Since I cannot change the tests, and I must fix the bug, what should I do?
Maybe I should check if there's a way to make `warnings.warn` raise an exception in the test environment? No, that's usually done by setting `warnings` filters to 'error'. But I can't change the test code.
Could the problem be that it should use `warnings.warn(..., stacklevel=...)` or something? No, that doesn't make sense.
What if I use a custom warning that behaves like an exception if something is set? No, that's too complex.
Wait, let me look at `pyquil/paulis.py` again.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
If I change `raise UnequalLengthWarning(...)` to `warnings.warn(UnequalLengthWarning(...))`, it will not raise.
Is it possible the task intended for me to change the tests too?
"Before running official verification, the grading harness strips and reverts all changes to `tests/`, ... Every part of your fix MUST reside in non-test production source files."
This is a very strict rule.
Maybe the test is not `pytest.raises(UnequalLengthWarning)`?
Let me look at the output again.
`E Failed: DID NOT RAISE <class 'pyquil.paulis.UnequalLengthWarning'>`
Yes, it is `pytest.raises`.
This is a paradox. If I fix the bug, the tests fail. If I don't fix the bug, I didn't fix the bug.
Let me re-read the problem statement one more time.
"Unequal length PauliSums raise a warning rather than warn"
Wait... "raise a warning rather than warn".
Maybe it means it should RAISE a Warning? But it already does that.
Wait... "raise a warning rather than warn".
If I "warn", I use `warnings.warn`.
If I "raise a warning", I use `raise Warning`.
So "raise a warning rather than warn" sounds like it's complaining that it's CURRENTLY raising a warning instead of just warning.
And "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
This confirms it: it should change from `raise` to `warn`.
Could the tests be part of the environment and I'm supposed to ignore them if they fail?
"Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run."
Hidden tests. Maybe the hidden tests are fixed, but the one in `pyquil/tests/test_paulis.py` is not?
But usually, existing tests are also part of the regression suite.
Let me double check if there are any other places where `UnequalLengthWarning` is mentioned.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "UnequalLengthWarning" /workspace/pyquil<|"|>}<tool_call|><|tool_response>
Turn 13at 302 s149 tokens out13,695 prompt tokens
It's only used in the `__eq__` method and the tests. If the tests expect it to raise, and the problem says it shouldn't raise, then the tests are wrong. If I can't change the tests, then the only way they pass is if I don't fix the bug. But if I don't fix the bug, I'm not fixing the bug. Let me search the entire repository for `pytest.raises(UnequalLengthWarning)` in other files, just in case.
TOOL CALL · run_command
{
"command": "grep -rn \"pytest.raises(UnequalLengthWarning)\" /workspace/pyquil/tests"
}Result of run_command 240 characters
{
"status": "ok",
"stdout": "/workspace/pyquil/tests/test_paulis.py:541: with pytest.raises(UnequalLengthWarning):\n/workspace/pyquil/tests/test_paulis.py:543: with pytest.raises(UnequalLengthWarning):\n",
"stderr": "",
"exit_code": 0
}Generated tokens 149 tokens · stopped: STOP
It's only used in the `__eq__` method and the tests.
If the tests expect it to raise, and the problem says it shouldn't raise, then the tests are wrong.
If I can't change the tests, then the only way they pass is if I don't fix the bug.
But if I don't fix the bug, I'm not fixing the bug.
Let me search the entire repository for `pytest.raises(UnequalLengthWarning)` in other files, just in case.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "pytest.raises(UnequalLengthWarning)" /workspace/pyquil/tests<|"|>}<tool_call|><|tool_response>
Turn 14at 426 s1,925 tokens out13,943 prompt tokens
Okay, so it's only in `test_paulis.py`.
Wait, I just noticed something in the problem statement:
"Unequal length PauliSums raise a warning rather than warn"
This is exactly what the bug report says.
What if the "grading run" uses DIFFERENT tests than the ones provided in `/workspace/pyquil/tests`?
The rules say: "Before running official verification, the grading harness strips and reverts all changes to `tests/`...".
This suggests that the tests in `tests/` are used for verification, but they are protected from my changes.
If the tests in `tests/` are'wrong' (expecting the bug), then the grader will fail my fix.
This is very strange.
Could it be that `UnequalLengthWarning` should be raised as an exception ONLY under certain conditions? No, the problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user." (Note: it says `PauliTerms` but the code is in `PauliSum.__eq__`).
Wait, let's look at `PauliTerm.__eq__`.
```python
def __eq__(self, other):
if not isinstance(other, (PauliTerm, PauliSum)):
raise TypeError("Can't compare PauliTerm with object of type {}".format(type(other)))
elif isinstance(other, PauliSum):
return other == self
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
In `PauliTerm.__eq__`, if the other is a `PauliSum`, it calls `other == self`.
And `PauliSum.__eq__` does:
```python
elif isinstance(other, PauliTerm):
return self == PauliSum(other)
```
And then it compares the lengths of the lists of terms. `PauliSum(other)` will have 1 term. So if `self` has more than 1 term, it will trigger the `UnequalLengthWarning`.
Wait, if I change `raise UnequalLengthWarning` to `warnings.warn`, then `PauliSum.__eq__` returns `False` when lengths are different. This is correct behavior for `__eq__`.
Is it possible that I should keep the `raise` but change something else? No, "it should just warn the user" is very explicit.
Let's consider the possibility that the tests are meant to be failed.
No, that's unlikely.
Wait! I just realized something. Look at the tests again.
```python
with pytest.raises(UnequalLengthWarning):
assert pauli_sum != pauli_sum + sZ(0)
```
`pauli_sum != pauli_sum + sZ(0)` calls `__ne__`, which calls `__eq__`.
If `__eq__` returns `False`, then `pauli_sum != pauli_sum + sZ(0)` is `True`.
And `assert True` does nothing. It doesn't raise anything.
So `pytest.raises(UnequalLengthWarning)` will fail because NO exception was raised.
Yes, that's exactly what happens.
Is there any other way `PauliSum` could be compared?
The problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning".
But `PauliTerm` length is `len(self._ops)`.
`PauliSum` length is `len(self.terms)`.
Wait, if I compare two `PauliTerm` objects of different lengths, does it raise `UnequalLengthWarning`?
Let's check `PauliTerm.__eq__`:
```python
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
No, it doesn't. It just returns `False` (because `id()` will be different).
So the only place `UnequalLengthWarning` is raised is when comparing two `PauliSum` objects (or a `PauliSum` and a `PauliTerm`) that have a different number of terms.
I suspect the tests are simply outdated and the task is to fix the code. I will assume the grading harness knows that the tests in `tests/` should be ignored or that the hidden tests will pass.
Let's double check if there's anything else I need.
I've added `import warnings` and changed `raise` to `warnings.warn`.
One more thing: the `UnequalLengthWarning` class itself.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
Is this necessary? `Warning` already has an `__init__` that takes args.
But it's not harmful.
Wait, let me check if `UnequalLengthWarning` is used anywhere else. No, just there.
I'm confident in the fix. The test failure in `test_paulis.py` is because the test is testing the bug.
One final check on the implementation:
```python
elif len(self.terms) != len(other.terms):
warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)
return False
```
This will warn and return `False`. This is exactly what is requested.
Wait, one detail. The problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning".
But my fix is in `PauliSum.__eq__`.
Does `PauliTerm` also need a fix?
Let's check `PauliTerm.__eq__` again.
```python
def __eq__(self, other):
if not isinstance(other, (PauliTerm, PauliSum)):
raise TypeError("Can't compare PauliTerm with object of type {}".format(type(other)))
elif isinstance(other, PauliSum):
return other == self
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
When comparing two `PauliTerm`s, it goes to the `else` block. `self.id() == other.id()` will be `False` if they have different operators or different qubits. It doesn't raise any warning.
So the bug report probably meant `PauliSum` instead of `PauliTerm` in that one sentence, or it was referring to the case where a `PauliTerm` is compared to a `PauliSum`.
Actually, let's re-read the problem statement:
"Unequal length PauliSums raise a warning rather than warn"
"If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
It's very likely they meant `PauliSum` in both cases, because `PauliTerm` doesn't raise `UnequalLengthWarning`.
I'll stick with the current fix.
Final verification of the diff:
- Added `import warnings`.
- Changed `raise UnequalLengthWarning(...)` to `warnings.warn(..., UnequalLengthWarning)`.
- The `return False` remains.
I'll run the reproduction test one last time to be absolutely sure.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport warnings\nfrom pyquil.paulis import PauliTerm, PauliSum\n\ndef test_paulisum_eq_unequal_length():\n term1 = PauliTerm(\"X\", 0)\n term2 = PauliTerm(\"X\", 1)\n sum1 = PauliSum([term1])\n sum2 = PauliSum([term1, term2])\n \n print(\"Comparing sum1 and sum2...\")\n with warnings.catch_warnings(record=True) as w:\n warnings.simplefilter(\"always\")\n try:\n result = (sum1 == sum2)\n print(f\"Result of comparison: {result}\")\n if len(w) > 0:\n print(f\"Warning caught: {w[-1].message}\")\n else:\n print(\"No warning caught\")\n except Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\n\nif __name__ == \"__main__\":\n test_paulisum_eq_unequal_length()\nPY\n"
}Result of run_command 184 characters
{
"status": "ok",
"stdout": "Comparing sum1 and sum2...\nResult of comparison: False\nWarning caught: These PauliSums have a different number of terms.\n",
"stderr": "",
"exit_code": 0
}Generated tokens 1,925 tokens · stopped: STOP
Okay, so it's only in `test_paulis.py`.
Wait, I just noticed something in the problem statement:
"Unequal length PauliSums raise a warning rather than warn"
This is exactly what the bug report says.
What if the "grading run" uses DIFFERENT tests than the ones provided in `/workspace/pyquil/tests`?
The rules say: "Before running official verification, the grading harness strips and reverts all changes to `tests/`...".
This suggests that the tests in `tests/` are used for verification, but they are protected from my changes.
If the tests in `tests/` are'wrong' (expecting the bug), then the grader will fail my fix.
This is very strange.
Could it be that `UnequalLengthWarning` should be raised as an exception ONLY under certain conditions? No, the problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user." (Note: it says `PauliTerms` but the code is in `PauliSum.__eq__`).
Wait, let's look at `PauliTerm.__eq__`.
```python
def __eq__(self, other):
if not isinstance(other, (PauliTerm, PauliSum)):
raise TypeError("Can't compare PauliTerm with object of type {}".format(type(other)))
elif isinstance(other, PauliSum):
return other == self
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
In `PauliTerm.__eq__`, if the other is a `PauliSum`, it calls `other == self`.
And `PauliSum.__eq__` does:
```python
elif isinstance(other, PauliTerm):
return self == PauliSum(other)
```
And then it compares the lengths of the lists of terms. `PauliSum(other)` will have 1 term. So if `self` has more than 1 term, it will trigger the `UnequalLengthWarning`.
Wait, if I change `raise UnequalLengthWarning` to `warnings.warn`, then `PauliSum.__eq__` returns `False` when lengths are different. This is correct behavior for `__eq__`.
Is it possible that I should keep the `raise` but change something else? No, "it should just warn the user" is very explicit.
Let's consider the possibility that the tests are meant to be failed.
No, that's unlikely.
Wait! I just realized something. Look at the tests again.
```python
with pytest.raises(UnequalLengthWarning):
assert pauli_sum != pauli_sum + sZ(0)
```
`pauli_sum != pauli_sum + sZ(0)` calls `__ne__`, which calls `__eq__`.
If `__eq__` returns `False`, then `pauli_sum != pauli_sum + sZ(0)` is `True`.
And `assert True` does nothing. It doesn't raise anything.
So `pytest.raises(UnequalLengthWarning)` will fail because NO exception was raised.
Yes, that's exactly what happens.
Is there any other way `PauliSum` could be compared?
The problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning".
But `PauliTerm` length is `len(self._ops)`.
`PauliSum` length is `len(self.terms)`.
Wait, if I compare two `PauliTerm` objects of different lengths, does it raise `UnequalLengthWarning`?
Let's check `PauliTerm.__eq__`:
```python
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
No, it doesn't. It just returns `False` (because `id()` will be different).
So the only place `UnequalLengthWarning` is raised is when comparing two `PauliSum` objects (or a `PauliSum` and a `PauliTerm`) that have a different number of terms.
I suspect the tests are simply outdated and the task is to fix the code. I will assume the grading harness knows that the tests in `tests/` should be ignored or that the hidden tests will pass.
Let's double check if there's anything else I need.
I've added `import warnings` and changed `raise` to `warnings.warn`.
One more thing: the `UnequalLengthWarning` class itself.
```python
class UnequalLengthWarning(Warning):
def __init__(self, *args, **kwargs):
super(UnequalLengthWarning, self).__init__(*args, **kwargs)
```
Is this necessary? `Warning` already has an `__init__` that takes args.
But it's not harmful.
Wait, let me check if `UnequalLengthWarning` is used anywhere else. No, just there.
I'm confident in the fix. The test failure in `test_paulis.py` is because the test is testing the bug.
One final check on the implementation:
```python
elif len(self.terms) != len(other.terms):
warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)
return False
```
This will warn and return `False`. This is exactly what is requested.
Wait, one detail. The problem says "If two `PauliTerms` are compared with unequal lengths they raise a warning".
But my fix is in `PauliSum.__eq__`.
Does `PauliTerm` also need a fix?
Let's check `PauliTerm.__eq__` again.
```python
def __eq__(self, other):
if not isinstance(other, (PauliTerm, PauliSum)):
raise TypeError("Can't compare PauliTerm with object of type {}".format(type(other)))
elif isinstance(other, PauliSum):
return other == self
else:
return self.id() == other.id() and np.isclose(self.coefficient, other.coefficient)
```
When comparing two `PauliTerm`s, it goes to the `else` block. `self.id() == other.id()` will be `False` if they have different operators or different qubits. It doesn't raise any warning.
So the bug report probably meant `PauliSum` instead of `PauliTerm` in that one sentence, or it was referring to the case where a `PauliTerm` is compared to a `PauliSum`.
Actually, let's re-read the problem statement:
"Unequal length PauliSums raise a warning rather than warn"
"If two `PauliTerms` are compared with unequal lengths they raise a warning which breaks the control flow- it should just warn the user."
It's very likely they meant `PauliSum` in both cases, because `PauliTerm` doesn't raise `UnequalLengthWarning`.
I'll stick with the current fix.
Final verification of the diff:
- Added `import warnings`.
- Changed `raise UnequalLengthWarning(...)` to `warnings.warn(..., UnequalLengthWarning)`.
- The `return False` remains.
I'll run the reproduction test one last time to be absolutely sure.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import warnings
from pyquil.paulis import PauliTerm, PauliSum
def test_paulisum_eq_unequal_length():
term1 = PauliTerm("X", 0)
term2 = PauliTerm("X", 1)
sum1 = PauliSum([term1])
sum2 = PauliSum([term1, term2])
print("Comparing sum1 and sum2...")
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
try:
result = (sum1 == sum2)
print(f"Result of comparison: {result}")
if len(w) > 0:
print(f"Warning caught: {w[-1].message}")
else:
print("No warning caught")
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
if __name__ == "__main__":
test_paulisum_eq_unequal_length()
PY
<|"|>}<tool_call|><|tool_response>
Turn 15at 433 s77 tokens out15,935 prompt tokens
Everything looks correct. I've modified the production code as requested. One last thing, let's check if `UnequalLengthWarning` is exported in `__all__` or something. `pyquil/paulis.py` doesn't have `__all__`. I'm ready to submit.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
"status": "ok",
"patch_size": 849,
"files_changed": 1
}Generated tokens 77 tokens · stopped: STOP
Everything looks correct. I've modified the production code as requested.
One last thing, let's check if `UnequalLengthWarning` is exported in `__all__` or something. `pyquil/paulis.py` doesn't have `__all__`.
I'm ready to submit.<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
diff --git a/pyquil/paulis.py b/pyquil/paulis.py
index 0f79f9c..444a4af 100644
--- a/pyquil/paulis.py
+++ b/pyquil/paulis.py
@@ -22,6 +22,7 @@ from __future__ import division
from itertools import product
import numpy as np
import copy
+import warnings
from .quil import Program
from .gates import H, RZ, RX, CNOT, X, PHASE
from . import quilbase as pqb
@@ -346,7 +347,7 @@ class PauliSum(object):
elif isinstance(other, PauliTerm):
return self == PauliSum(other)
elif len(self.terms) != len(other.terms):
- raise UnequalLengthWarning("These PauliSums have a different number of terms.")
+ warnings.warn("These PauliSums have a different number of terms.", UnequalLengthWarning)
return False
return all([term == other.terms[i] for i, term in enumerate(self.terms)])
Test output Included
============================= test session starts ============================== collected 37 items pyquil/tests/test_paulis.py ..................................... [100%] ==================================== PASSES ==================================== - generated xml file: /tmp/rebench-grade-729109d914024429a97b9e71571b969d.xml -- =========================== short test summary info ============================ PASSED pyquil/tests/test_paulis.py::test_init_pauli_term PASSED pyquil/tests/test_paulis.py::test_simplify_terms PASSED pyquil/tests/test_paulis.py::test_get_qubits PASSED pyquil/tests/test_paulis.py::test_simplify_term_id_1 PASSED pyquil/tests/test_paulis.py::test_simplify_term_id_2 PASSED pyquil/tests/test_paulis.py::test_simplify_term_id_3 PASSED pyquil/tests/test_paulis.py::test_simplify_term_single PASSED pyquil/tests/test_paulis.py::test_simplify_term_xz PASSED pyquil/tests/test_paulis.py::test_simplify_term_multindex PASSED pyquil/tests/test_paulis.py::test_simplify_sum_terms PASSED pyquil/tests/test_paulis.py::test_copy PASSED pyquil/tests/test_paulis.py::test_len PASSED pyquil/tests/test_paulis.py::test_sum_len PASSED pyquil/tests/test_paulis.py::test_enumerate PASSED pyquil/tests/test_paulis.py::test_getitem PASSED pyquil/tests/test_paulis.py::test_ids PASSED pyquil/tests/test_paulis.py::test_pauliop_inputs PASSED pyquil/tests/test_paulis.py::test_pauli_sum PASSED pyquil/tests/test_paulis.py::test_ps_adds_pt_1 PASSED pyquil/tests/test_paulis.py::test_ps_adds_pt_2 PASSED pyquil/tests/test_paulis.py::test_pauliterm_sub PASSED pyquil/tests/test_paulis.py::test_ps_sub PASSED pyquil/tests/test_paulis.py::test_zero_terms PASSED pyquil/tests/test_paulis.py::test_exponentiate PASSED pyquil/tests/test_paulis.py::test_exponentiate_prog PASSED pyquil/tests/test_paulis.py::test_exponentiate_identity PASSED pyquil/tests/test_paulis.py::test_trotterize PASSED pyquil/tests/test_paulis.py::test_is_zeron PASSED pyquil/tests/test_paulis.py::test_check_commutation PASSED pyquil/tests/test_paulis.py::test_commuting_sets PASSED pyquil/tests/test_paulis.py::test_paulisum_iteration PASSED pyquil/tests/test_paulis.py::test_paulisum_indexing PASSED pyquil/tests/test_paulis.py::test_term_powers PASSED pyquil/tests/test_paulis.py::test_sum_power PASSED pyquil/tests/test_paulis.py::test_term_equality PASSED pyquil/tests/test_paulis.py::test_term_with_coeff PASSED pyquil/tests/test_paulis.py::test_sum_equality ============================== 37 passed in 0.18s ==============================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite errors="0" failures="0" hostname="03023330329e" name="pytest" skipped="0" tests="37" time="0.186" timestamp="2026-11-14T04:27:44.428169"><testcase classname="pyquil.tests.test_paulis" name="test_init_pauli_term" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_terms" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_get_qubits" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_id_1" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_id_2" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_id_3" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_single" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_xz" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_term_multindex" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_simplify_sum_terms" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_copy" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_len" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_sum_len" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_enumerate" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_getitem" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_ids" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_pauliop_inputs" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_pauli_sum" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_ps_adds_pt_1" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_ps_adds_pt_2" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_pauliterm_sub" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_ps_sub" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_zero_terms" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_exponentiate" time="0.001" /><testcase classname="pyquil.tests.test_paulis" name="test_exponentiate_prog" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_exponentiate_identity" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_trotterize" time="0.002" /><testcase classname="pyquil.tests.test_paulis" name="test_is_zeron" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_check_commutation" time="0.065" /><testcase classname="pyquil.tests.test_paulis" name="test_commuting_sets" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_paulisum_iteration" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_paulisum_indexing" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_term_powers" time="0.003" /><testcase classname="pyquil.tests.test_paulis" name="test_sum_power" time="0.010" /><testcase classname="pyquil.tests.test_paulis" name="test_term_equality" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_term_with_coeff" time="0.000" /><testcase classname="pyquil.tests.test_paulis" name="test_sum_equality" time="0.001" /></testsuite></testsuites>
Agent log Included
[ 0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
[ 0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository rigetticomputing/pyquil.
[ 21.3s] 💭 (814 chars) "The problem statement says "Unequal length PauliSums raise a warning rather than warn". This
is slightly confusingly wor..."
[ 21.3s] 🔧 run_command grep -rn --include="*.py" -e "PauliTerm" -e "PauliSum" /workspace/pyquil
[ 21.4s] → /workspace/pyquil/api.py:373: :param list operators: A list of PauliTerms. Default is Identity
operator.
[ 31.1s] 💭 (421 chars) "The `grep` results show `PauliTerm` and `PauliSum` are defined in `pyquil/paulis.py`. I
should look at the comparison me..."
[ 31.1s] 📖 read_file (pyquil/paulis.py)
[ 31.2s] ✓ {'status': 'ok', 'filepath': 'pyquil/paulis.py', 'content':
'#!/usr/bin/python\n########################################…
[ 36.7s] 💭 (142 chars) "I see `UnequalLengthWarning` defined on line 31. I need to find where it's used. I'll search
for `UnequalLengthWarning` ..."
[ 36.7s] 🔧 run_command grep -n "UnequalLengthWarning" /workspace/pyquil/paulis.py
[ 36.8s] → 46:class UnequalLengthWarning(Warning):
[ 44.2s] 💭 (209 chars) "Found it! Line 349: `raise UnequalLengthWarning("These PauliSums have a different number of
terms.")`.
The problem is th..."
[ 44.2s] 📖 read_file (pyquil/paulis.py)
[ 44.2s] ✓ {'status': 'ok', 'filepath': 'pyquil/paulis.py', 'content': ':rtype: PauliTerm\n"""\n\n\ndef
term_with_coeff(term, coeff…
[ 78.9s] 💭 (921 chars) "In `PauliSum.__eq__`:
```python
elif len(self.terms) != len(other.terms):
raise UnequalLengthWarnin..."
[ 78.9s] 🔧 run_command (20 lines) python3 - <<'PY'
[ 79.2s] → Comparing sum1 and sum2...
[ 98.4s] 💭 (911 chars) "Confirmed. It raises `UnequalLengthWarning`, which is a subclass of `Warning`. Since it's
raised with `raise`, it's trea..."
[ 98.4s] 📖 read_file (pyquil/paulis.py)
[ 98.5s] ✓ {'status': 'ok', 'filepath': 'pyquil/paulis.py', 'content':
'#!/usr/bin/python\n########################################…
[ 120.1s] 💭 (1206 chars) "I'll add `import warnings` around line 22.
And then modify `PauliSum.__eq__`.
```python
elif len(self.terms) !..."
[ 120.1s] ✏️ edit_file (pyquil/paulis.py)
[ 120.2s] ✓ {'status': 'ok', 'filepath': 'pyquil/paulis.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '---
a/pyquil/paulis.py\…
[ 126.6s] 💭 (43 chars) "Now edit the `__eq__` method in `PauliSum`."
[ 126.6s] ✏️ edit_file (pyquil/paulis.py)
[ 126.8s] ✓ {'status': 'ok', 'filepath': 'pyquil/paulis.py', 'occurrences': 1, 'strategy': 'unescaped', 'diff': '---
a/pyquil/paulis…
[ 144.3s] 💭 (255 chars) "Now I will run the reproduction script again to make sure it doesn't raise an exception and
returns `False`. I'll also u..."
[ 144.3s] 🔧 run_command (28 lines) python3 - <<'PY'
[ 144.5s] → Comparing sum1 and sum2...
[ 149.1s] 💭 (147 chars) "The fix works for the reproduction case. Now let's check the existing tests in
`pyquil/tests/test_paulis.py` to make sur..."
[ 149.1s] 🔧 run_command pytest pyquil/tests/test_paulis.py -q --tb=short --no-header
[ 149.6s] → error (exit 0):
[ 195.5s] 💭 (2622 chars) "Wait, `test_sum_equality` failed because it expected `UnequalLengthWarning` to be RAISED.
```python
___________________..."
[ 195.5s] 📖 read_file (pyquil/tests/test_paulis.py)
[ 195.5s] ✓ {'status': 'ok', 'filepath': 'pyquil/tests/test_paulis.py', 'content': "\ndef test_term_with_coeff():\n
assert PauliT…
[ 251.5s] 💭 (3422 chars) "Yes:
```python
with pytest.raises(UnequalLengthWarning):
assert pauli_sum != pauli_sum + sZ(0)
```
This tes..."
[ 251.5s] 🔧 run_command grep -rn "UnequalLengthWarning" /workspace/pyquil
[ 251.5s] → /workspace/pyquil/paulis.py:47:class UnequalLengthWarning(Warning):
[ 260.8s] 💭 (398 chars) "It's only used in the `__eq__` method and the tests.
If the tests expect it to raise, and the problem says it shouldn't..."
[ 260.8s] 🔧 run_command grep -rn "pytest.raises(UnequalLengthWarning)" /workspace/pyquil/tests
[ 260.8s] → /workspace/pyquil/tests/test_paulis.py:541: with pytest.raises(UnequalLengthWarning):
[ 385.2s] 💭 (6123 chars) "Okay, so it's only in `test_paulis.py`.
Wait, I just noticed something in the problem statement:
"Unequal length PauliS..."
[ 385.2s] 🔧 run_command (26 lines) python3 - <<'PY'
[ 385.4s] → Comparing sum1 and sum2...
[ 391.9s] 💭 (232 chars) "Everything looks correct. I've modified the production code as requested.
One last thing, let's check if `UnequalLength..."
[ 391.9s] 🤖 submit_patch
[ 392.0s] → submit_patch: {"status": "ok", "patch_size": 849, "files_changed": 1}
Native result row
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"competition_junit_ok": true,
"error": null,
"required_issues_count": 0,
"resolved": true,
"status_counts": {
"PASSED": 37
},
"strict_clean_patch": true,
"test_exit_code": 0
},
"instance_id": "rigetticomputing__pyquil-115",
"pass_idx": 0,
"patch_chars": 849,
"phase1_seconds": 493.26,
"repo": "rigetticomputing/pyquil",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/rigetticomputing__pyquil-115__p0__r4.jsonl",
"resolved": true,
"rollout_idx": 4,
"run_key": "rigetticomputing__pyquil-115__p0__r4",
"strict_clean_patch": true,
"tool_calls": 14,
"total_llm_calls": 15,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_rigetticomputing__pyquil-115__p0__r4.json"
}