ROLLOUT 4 · ecmwf/earthkit-data
ecmwf__earthkit-data-111
Solved
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11tool calls
13model calls
4,473tokens generated
92,212prompt tokens read
No error recorded
⚠ The request log has 12 model calls but the trace has 14 agent calls, so tokens are listed separately instead of beside each turn.
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System instructions 4,822 characters
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 2,913 characters
You are evaluating a software engineering task for repository ecmwf/earthkit-data.
Problem Statement:
to_pandas fails for bufr when no filters argument specified
### What happened?
Running this code:
```
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
results in the following error:
```
File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr
filters = dict(filters)
TypeError: 'NoneType' object is not iterable
```
To make it work `filters` must be specified. E.g.:
`r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`
### What are the steps to reproduce the bug?
See above
### Version
0.1.3, develop
### Platform (OS and architecture)
all
### Relevant log output
_No response_
### Accompanying data
_No response_
### Organisation
_No response_
## 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):
```
./LICENSE
./Makefile
./README.md
./docs
./earthkit
./earthkit/data
./earthkit/data/__init__.py
./earthkit/data/arguments
./earthkit/data/core
./earthkit/data/data
./earthkit/data/decorators.py
./earthkit/data/indexing
./earthkit/data/input_manager.py
./earthkit/data/mergers
./earthkit/data/mirrors
./earthkit/data/readers
./earthkit/data/sources
./earthkit/data/sphinxext
./earthkit/data/testing.py
./earthkit/data/translators
./earthkit/data/utils
./earthkit/data/vocabularies
./earthkit/data/wrappers
./environment.yml
./pyproject.toml
./pytest.ini
./setup.cfg
./tests
```
Turn 1at 49 s317 tokens out2,836 prompt tokens
The user is reporting a `TypeError: 'NoneType' object is not iterable` when calling `to_pandas` on a BUFR dataset without providing the `filters` argument.
The error occurs in `git/pdbufr/pdbufr/bufr_structure.py`, but wait, the workspace layout says the source is under `/workspace/earthkit/data`.
The error log says `File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr`. This might be a dependency or a part of the package that is installed in the environment or maybe it's actually in the workspace but the path in the traceback is different. Let's check if `pdbufr` is in the workspace.
Wait, the problem statement says:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
The error happens in `stream_bufr` in `pdbufr/bufr_structure.py`.
Let's see where `to_pandas` is implemented in `earthkit.data`.
I'll start by searching for `to_pandas` in `earthkit/data`.
TOOL CALL · run_command
{
"command": "grep -rn --include=\"*.py\" \"def to_pandas\" earthkit/data"
}Result of run_command 1,248 characters
{
"status": "ok",
"stdout": "earthkit/data/core/statistics.py:71: def to_pandas(self):\nearthkit/data/core/__init__.py:47: def to_pandas(self, **kwargs):\nearthkit/data/mergers/__init__.py:74: def to_pandas(self, **kwargs):\nearthkit/data/mergers/__init__.py:113: def to_pandas(self, *args, **kwargs):\nearthkit/data/sources/multi.py:100: def to_pandas(self, **kwargs):\nearthkit/data/sources/cds.py:130: def to_pandas(self, **kwargs):\nearthkit/data/sources/memory.py:41: def to_pandas(self, **kwargs):\nearthkit/data/sources/ecmwf_api.py:99: def to_pandas(self, **kwargs):\nearthkit/data/sources/file.py:105: def to_pandas(self, **kwargs):\nearthkit/data/wrappers/xarray.py:71: def to_pandas(self, *args, **kwargs):\nearthkit/data/readers/bufr.py:40: def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):\nearthkit/data/readers/grib/pandas.py:16: def to_pandas(self, latitude=None, longitude=None, **kwargs):\nearthkit/data/readers/netcdf.py:191: def to_pandas(self):\nearthkit/data/readers/netcdf.py:377: def to_pandas(self):\nearthkit/data/readers/odb.py:18: def to_pandas(self, **kwargs):\nearthkit/data/readers/csv.py:135: def to_pandas(self, **kwargs):\n",
"stderr": "",
"exit_code": 0
}Turn 2at 65 s210 tokens out3,643 prompt tokens
The error report mentions `bufr` and `to_pandas`. The grep results show `earthkit/data/readers/bufr.py:40: def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):`. This looks like the place where `to_pandas` for BUFR is implemented. The traceback says the error is in `pdbufr/bufr_structure.py`, which is likely a dependency of `earthkit-data`. If `earthkit/data/readers/bufr.py` calls something in `pdbufr` and passes `filters=None` when `pdbufr` expects an iterable, that's the bug. Let's examine `earthkit/data/readers/bufr.py`.
TOOL CALL · read_file
{
"end_line": 100,
"filepath": "earthkit/data/readers/bufr.py",
"start_line": 1
}Result of read_file 3,239 characters
{
"status": "ok",
"filepath": "earthkit/data/readers/bufr.py",
"content": "# (C) Copyright 2020 ECMWF.\n#\n# This software is licensed under the terms of the Apache Licence Version 2.0\n# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.\n# In applying this licence, ECMWF does not waive the privileges and immunities\n# granted to it by virtue of its status as an intergovernmental organisation\n# nor does it submit to any jurisdiction.\n#\n\n# See:\n# https://github.com/ecmwf/pdbufr\nfrom . import Reader\n\nCOLUMNS = (\"latitude\", \"longitude\", \"data_datetime\")\n\nBUFR_LS_KEYS = {\n \"edition\": \"edition\",\n \"type\": \"dataCategory\",\n \"subtype\": \"dataSubCategory\",\n \"c\": \"bufrHeaderCentre\",\n \"mv\": \"masterTablesVersionNumber\",\n \"lv\": \"localTablesVersionNumber\",\n \"subsets\": \"numberOfSubsets\",\n \"compr\": \"compressedData\",\n \"typicalDate\": \"typicalDate\",\n \"typicalTime\": \"typicalTime\",\n \"ident\": \"ident\",\n \"lat\": \"localLatitude\",\n \"lon\": \"localLongitude\",\n}\n\n\nclass BUFRReader(Reader):\n \"\"\"Represents a BUFR file\"\"\"\n\n def __init__(self, source, path):\n super().__init__(source, path)\n self._num = None\n\n def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):\n \"\"\"Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.\n\n Parameters\n ----------\n columns: str, sequence[str]\n List of ecCodes BUFR keys to extract for each BUFR message/subset.\n See: :xref:`read_bufr` for details.\n filters: dict\n Defines the conditions when to extract the specified ``columns``. See:\n :xref:`read_bufr` for details.\n **kwargs: dict, optional\n Other keyword arguments:\n\n Returns\n -------\n Pandas DataFrame\n\n Examples\n --------\n :ref:`/examples/bufr.ipynb`\n\n \"\"\"\n import pdbufr\n\n return pdbufr.read_bufr(self.path, columns=columns, filters=filters)\n\n def __len__(self):\n if self._num is None:\n import eccodes\n\n with open(self.path, \"rb\") as f:\n self._num = eccodes.codes_count_in_file(f)\n return self._num\n\n def ls(self, *args, **kwargs):\n from pdbufr.high_level_bufr.bufr import BufrFile\n\n from earthkit.data.utils.summary import ls\n\n b = BufrFile(self.path)\n\n def _proc(keys, n):\n count_start = 0\n if n is None:\n count_end = len(self)\n elif n > 0:\n count_end = n\n else:\n num = len(self)\n count_start = max(0, num + n)\n count_end = num\n\n for count, msg in enumerate(b):\n with msg:\n if count_start <= count < count_end:\n yield ({k: msg[k1] for k, k1 in keys.items()})\n elif count >= count_end:\n break\n\n return ls(_proc, BUFR_LS_KEYS, *args, **kwargs)",
"start_line": 1,
"end_line": 100,
"total_lines": 105,
"is_truncated": false
}Turn 3at 112 s561 tokens out4,833 prompt tokens
In `earthkit/data/readers/bufr.py`:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
The `filters` argument defaults to `None`. If the user doesn't provide it, `pdbufr.read_bufr` is called with `filters=None`.
According to the issue, `pdbufr` fails with `TypeError: 'NoneType' object is not iterable` in `pdbufr/bufr_structure.py` at line 616: `filters = dict(filters)`.
Since the error is in `pdbufr`, which is an external dependency (indicated by `import pdbufr` inside the method), and the task is to fix `earthkit-data`, I should ensure that `filters` is not `None` when passed to `pdbufr.read_bufr` if `pdbufr` cannot handle `None`.
The issue states:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
So, if `filters` is `None`, I should pass an empty dictionary `{}` instead.
Wait, let me verify if I should be fixing `pdbufr` or `earthkit-data`.
The instructions say: "All source code is under /workspace. Do NOT search outside /workspace".
The traceback mentions `git/pdbufr/pdbufr/bufr_structure.py`, but I don't see `pdbufr` in the workspace layout.
Workspace layout:
```
./LICENSE
./Makefile
./README.md
./docs
./earthkit
./earthkit/data
...
```
`pdbufr` is not there. So it's a dependency.
The fix should be in `earthkit/data/readers/bufr.py`.
Let's double check if there are other places where `read_bufr` or similar functions are called.
Actually, `to_pandas` is the only place in `BUFRReader` that calls `pdbufr.read_bufr`.
Let's see if `pdbufr` is used elsewhere in `earthkit/data`.
TOOL CALL · run_command
{
"command": "grep -rn \"pdbufr\" earthkit/data"
}Result of run_command 501 characters
{
"status": "ok",
"stdout": "earthkit/data/readers/bufr.py:11:# https://github.com/ecmwf/pdbufr\nearthkit/data/readers/bufr.py:41: \"\"\"Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.\nearthkit/data/readers/bufr.py:63: import pdbufr\nearthkit/data/readers/bufr.py:65: return pdbufr.read_bufr(self.path, columns=columns, filters=filters)\nearthkit/data/readers/bufr.py:76: from pdbufr.high_level_bufr.bufr import BufrFile\n",
"stderr": "",
"exit_code": 0
}Turn 4at 129 s113 tokens out5,599 prompt tokens
It seems only `earthkit/data/readers/bufr.py` uses `pdbufr`. Now let's try to reproduce the issue. I need a `.bufr` file. I don't have one, but I can try to create a mock or see if there's one in the tests. Let's check `tests/` for bufr files or tests related to BUFR.
TOOL CALL · run_command
{
"command": "find tests -name \"*.bufr\""
}Result of run_command 60 characters
{
"status": "ok",
"stdout": "",
"stderr": "",
"exit_code": 0
}Turn 5at 134 s61 tokens out5,749 prompt tokens
No `.bufr` files in `tests/`. Let's look for tests that use `BUFRReader` or `to_pandas` for BUFR.
TOOL CALL · run_command
{
"command": "grep -rn \"BUFRReader\" tests/"
}Result of run_command 127 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": "",
"details": {
"stdout": "",
"stderr": "",
"exit_code": 1
}
}Turn 6at 139 s58 tokens out5,865 prompt tokens
Wait, `grep -rn "BUFRReader" tests/` failed? Maybe I should use `grep -rn "to_pandas" tests/`.
TOOL CALL · run_command
{
"command": "grep -rn \"to_pandas\" tests/"
}Result of run_command 701 characters
{
"status": "ok",
"stdout": "tests/grib/test_grib_convert.py:29:def test_grib_to_pandas():\ntests/grib/test_grib_convert.py:33: df = f.to_pandas()\ntests/grib/test_grib_convert.py:57: df = f.to_pandas(latitude=90, longitude=30)\ntests/readers/test_csv_reader.py:31: print(s.to_pandas())\ntests/readers/test_csv_reader.py:46: print(s.to_pandas())\ntests/readers/test_csv_reader.py:61: print(s.to_pandas())\ntests/readers/test_csv_reader.py:77: print(s.to_pandas())\ntests/readers/test_csv_reader.py:113: print(s.to_pandas())\ntests/readers/test_odb_reader.py:17:def test_odb_to_pandas():\ntests/readers/test_odb_reader.py:19: df = ds.to_pandas()\n",
"stderr": "",
"exit_code": 0
}Turn 7at 175 s526 tokens out6,236 prompt tokens
It seems there are no existing tests for BUFR `to_pandas` in the `tests/` folder.
Wait, the user provided a reproduction script:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
I can try to run this, but I don't have `synop.bufr`.
However, I can mock `pdbufr.read_bufr` to see if the error would occur if I pass `None` to it, and if I pass `{}` it works.
Actually, if I just change the code to pass `{}` instead of `None`, it should solve the problem as described.
The problematic line in `pdbufr` is `filters = dict(filters)`.
If `filters` is `None`, `dict(None)` raises `TypeError: 'NoneType' object is not iterable`.
If `filters` is `{}`, `dict({})` returns `{}`.
So the fix is simple:
In `earthkit/data/readers/bufr.py`, change:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
to:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, it's even simpler to just set the default to `{}` in the signature, but that's usually avoided for mutable types in Python.
So initializing to `None` and then checking `if filters is None: filters = {}` is the standard way.
Let's check if there are other `to_pandas` implementations that handle `filters` similarly.
The grep results showed many `to_pandas` implementations.
Let's see `earthkit/data/readers/grib/pandas.py`:
TOOL CALL · read_file
{
"filepath": "earthkit/data/readers/grib/pandas.py"
}Result of read_file 1,567 characters
{
"status": "ok",
"filepath": "earthkit/data/readers/grib/pandas.py",
"content": "# (C) Copyright 2020 ECMWF.\n#\n# This software is licensed under the terms of the Apache Licence Version 2.0\n# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.\n# In applying this licence, ECMWF does not waive the privileges and immunities\n# granted to it by virtue of its status as an intergovernmental organisation\n# nor does it submit to any jurisdiction.\n#\n\nimport logging\n\nLOG = logging.getLogger(__name__)\n\n\nclass PandasMixIn:\n def to_pandas(self, latitude=None, longitude=None, **kwargs):\n import numpy as np\n import pandas as pd\n\n def ident(x):\n return x\n\n filter = ident\n\n def select_point(d):\n idx = np.where((d[\"lat\"] == latitude) & (d[\"lon\"] == longitude))\n return dict(lat=d[\"lat\"][idx], lon=d[\"lon\"][idx], value=d[\"value\"][idx])\n\n if latitude is not None or longitude is not None:\n filter = select_point\n\n columns = (\"lat\", \"lon\", \"value\")\n frames = []\n for s in self:\n df = pd.DataFrame.from_dict(\n filter(dict(zip(columns, s.data(columns, flatten=True))))\n )\n df[\"datetime\"] = s.datetime()[\"valid_time\"]\n for k, v in s.metadata(namespace=\"mars\").items():\n df[k] = v\n frames.append(df)\n return pd.concat(frames)",
"start_line": 1,
"end_line": 42,
"total_lines": 42,
"is_truncated": false
}Turn 8at 214 s664 tokens out7,250 prompt tokens
That's for GRIB.
Let's look at `earthkit/data/readers/bufr.py` again.
The `filters` argument in `BUFRReader.to_pandas` is explicitly intended to be passed to `pdbufr.read_bufr`.
I'll implement the fix.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, if `filters` is `None`, maybe `pdbufr.read_bufr` should be called without `filters` argument at all?
But the traceback says:
```
File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr
filters = dict(filters)
TypeError: 'NoneType' object is not iterable
```
This suggests that `pdbufr.read_bufr` probably calls `stream_bufr` and passes the `filters` argument along. If `filters` is passed as `None` to `stream_bufr`, then `dict(None)` fails.
If `pdbufr.read_bufr` has a default for `filters`, maybe we should avoid passing it if it is `None`.
But we don't have access to `pdbufr` source code to check its signature.
However, the user said:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
This confirms that passing `{}` works.
Let's apply the fix.
TOOL CALL · edit_file
{
"filepath": "earthkit/data/readers/bufr.py",
"new_string": " import pdbufr\n\n if filters is None:\n filters = {}\n return pdbufr.read_bufr(self.path, columns=columns, filters=filters)",
"old_string": " import pdbufr\n\n return pdbufr.read_bufr(self.path, columns=columns, filters=filters)"
}Result of edit_file 436 characters
{
"status": "ok",
"filepath": "earthkit/data/readers/bufr.py",
"occurrences": 1,
"strategy": "exact",
"diff": "--- a/earthkit/data/readers/bufr.py\n+++ b/earthkit/data/readers/bufr.py\n@@ -62,6 +62,8 @@\n \"\"\"\n import pdbufr\n \n+ if filters is None:\n+ filters = {}\n return pdbufr.read_bufr(self.path, columns=columns, filters=filters)\n \n def __len__(self):\n",
"is_truncated": false
}Turn 9at 244 s437 tokens out8,084 prompt tokens
Now I want to verify the fix. Since I don't have a BUFR file, I'll create a reproduction script that mocks `pdbufr.read_bufr` to verify that it's called with `{}` instead of `None`.
Actually, I can just write a small script that imports `BUFRReader` and calls `to_pandas` with a mock path, and mocks `pdbufr.read_bufr`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport unittest\nfrom unittest.mock import MagicMock, patch\nfrom earthkit.data.readers.bufr import BUFRReader\n\nclass TestBUFRReader(unittest.TestCase):\n @patch('pdbufr.read_bufr')\n def test_to_pandas_filters_none(self, mock_read_bufr):\n reader = BUFRReader(source=None, path='fake.bufr')\n reader.to_pandas(columns=['lat', 'lon'])\n \n # Check that filters was passed as {} not None\n args, kwargs = mock_read_bufr.call_args\n self.assertEqual(kwargs['filters'], {})\n self.assertEqual(kwargs['columns'], ['lat', 'lon'])\n\n @patch('pdbufr.read_bufr')\n def test_to_pandas_filters_provided(self, mock_read_bufr):\n reader = BUFRReader(source=None, path='fake.bufr')\n my_filters = {'key': 'value'}\n reader.to_pandas(columns=['lat', 'lon'], filters=my_filters)\n \n args, kwargs = mock_read_bufr.call_args\n self.assertEqual(kwargs['filters'], my_filters)\n self.assertEqual(kwargs['columns'], ['lat', 'lon'])\n\nif __name__ == '__main__':\n unittest.main()\nPY\n"
}Result of run_command 3,693 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": "EE\n======================================================================\nERROR: test_to_pandas_filters_none (__main__.TestBUFRReader)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n File \"/usr/local/lib/python3.10/unittest/mock.py\", line 1379, in patched\n return func(*newargs, **newkeywargs)\n File \"<stdin>\", line 8, in test_to_pandas_filters_none\n File \"/workspace/earthkit/data/core/__init__.py\", line 21, in __call__\n obj.__init__(*args, **kwargs)\n File \"/workspace/earthkit/data/readers/bufr.py\", line 37, in __init__\n super().__init__(source, path)\n File \"/workspace/earthkit/data/readers/__init__.py\", line 32, in __init__\n self._source = weakref.ref(source)\nTypeError: cannot create weak reference to 'NoneType' object\n\n======================================================================\nERROR: test_to_pandas_filters_provided (__main__.TestBUFRReader)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n File \"/usr/local/lib/python3.10/unittest/mock.py\", line 1379, in patched\n return func(*newargs, **newkeywargs)\n File \"<stdin>\", line 18, in test_to_pandas_filters_provided\n File \"/workspace/earthkit/data/core/__init__.py\", line 21, in __call__\n obj.__init__(*args, **kwargs)\n File \"/workspace/earthkit/data/readers/bufr.py\", line 37, in __init__\n super().__init__(source, path)\n File \"/workspace/earthkit/data/readers/__init__.py\", line 32, in __init__\n self._source = weakref.ref(source)\nTypeError: cannot create weak reference to 'NoneType' object\n\n----------------------------------------------------------------------\nRan 2 tests in 0.122s\n\nFAILED (errors=2)\n",
"details": {
"stdout": "",
"stderr": "EE\n======================================================================\nERROR: test_to_pandas_filters_none (__main__.TestBUFRReader)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n File \"/usr/local/lib/python3.10/unittest/mock.py\", line 1379, in patched\n return func(*newargs, **newkeywargs)\n File \"<stdin>\", line 8, in test_to_pandas_filters_none\n File \"/workspace/earthkit/data/core/__init__.py\", line 21, in __call__\n obj.__init__(*args, **kwargs)\n File \"/workspace/earthkit/data/readers/bufr.py\", line 37, in __init__\n super().__init__(source, path)\n File \"/workspace/earthkit/data/readers/__init__.py\", line 32, in __init__\n self._source = weakref.ref(source)\nTypeError: cannot create weak reference to 'NoneType' object\n\n======================================================================\nERROR: test_to_pandas_filters_provided (__main__.TestBUFRReader)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n File \"/usr/local/lib/python3.10/unittest/mock.py\", line 1379, in patched\n return func(*newargs, **newkeywargs)\n File \"<stdin>\", line 18, in test_to_pandas_filters_provided\n File \"/workspace/earthkit/data/core/__init__.py\", line 21, in __call__\n obj.__init__(*args, **kwargs)\n File \"/workspace/earthkit/data/readers/bufr.py\", line 37, in __init__\n super().__init__(source, path)\n File \"/workspace/earthkit/data/readers/__init__.py\", line 32, in __init__\n self._source = weakref.ref(source)\nTypeError: cannot create weak reference to 'NoneType' object\n\n----------------------------------------------------------------------\nRan 2 tests in 0.122s\n\nFAILED (errors=2)\n",
"exit_code": 1
}
}Turn 10at 264 s458 tokens out9,642 prompt tokens
The test failed because `BUFRReader(source=None, path='fake.bufr')` passes `None` as `source`, but `Reader.__init__` (which `BUFRReader` inherits from) tries to create a weak reference to it: `self._source = weakref.ref(source)`. I need to pass a real object as `source`, or mock it as well. Let's try passing a `MagicMock()` as `source`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport unittest\nfrom unittest.mock import MagicMock, patch\nfrom earthkit.data.readers.bufr import BUFRReader\n\nclass TestBUFRReader(unittest.TestCase):\n @patch('pdbufr.read_bufr')\n def test_to_pandas_filters_none(self, mock_read_bufr):\n source = MagicMock()\n reader = BUFRReader(source=source, path='fake.bufr')\n reader.to_pandas(columns=['lat', 'lon'])\n \n # Check that filters was passed as {} not None\n args, kwargs = mock_read_bufr.call_args\n self.assertEqual(kwargs['filters'], {})\n self.assertEqual(kwargs['columns'], ['lat', 'lon'])\n\n @patch('pdbufr.read_bufr')\n def test_to_pandas_filters_provided(self, mock_read_bufr):\n source = MagicMock()\n reader = BUFRReader(source=source, path='fake.bufr')\n my_filters = {'key': 'value'}\n reader.to_pandas(columns=['lat', 'lon'], filters=my_filters)\n \n args, kwargs = mock_read_bufr.call_args\n self.assertEqual(kwargs['filters'], my_filters)\n self.assertEqual(kwargs['columns'], ['lat', 'lon'])\n\nif __name__ == '__main__':\n unittest.main()\nPY\n"
}Result of run_command 165 characters
{
"status": "ok",
"stdout": "",
"stderr": "..\n----------------------------------------------------------------------\nRan 2 tests in 0.060s\n\nOK\n",
"exit_code": 0
}Turn 11at 292 s618 tokens out10,166 prompt tokens
The tests passed!
Now let's check if there are any other places in `earthkit/data/readers/bufr.py` that should be considered.
Looking at the file again:
```python
def ls(self, *args, **kwargs):
from pdbufr.high_level_bufr.bufr import BufrFile
from earthkit.data.utils.summary import ls
b = BufrFile(self.path)
def _proc(keys, n):
# ...
for count, msg in enumerate(b):
with msg:
if count_start <= count < count_end:
yield ({k: msg[k1] for k, k1 in keys.items()})
elif count >= count_end:
break
return ls(_proc, BUFR_LS_KEYS, *args, **kwargs)
```
The `ls` method doesn't seem to use `filters`.
The issue was specifically about `to_pandas`.
Let's double check the `BUFRReader.to_pandas` implementation.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
This looks correct and directly addresses the reported issue.
I'll just do a quick check to see if any other reader uses `pdbufr`.
I already did `grep -rn "pdbufr" earthkit/data` and it only returned `earthkit/data/readers/bufr.py`.
I should also check if `to_pandas` is called from somewhere else that might bypass `BUFRReader`.
The `from_source("file", "synop.bufr")` call would return a `Dataset` object, which eventually delegates `to_pandas` to the reader.
TOOL CALL · run_command
{
"command": "git status --short && git diff"
}Result of run_command 528 characters
{
"status": "ok",
"stdout": " M earthkit/data/readers/bufr.py\ndiff --git a/earthkit/data/readers/bufr.py b/earthkit/data/readers/bufr.py\nindex 59c7672..14dcc4d 100644\n--- a/earthkit/data/readers/bufr.py\n+++ b/earthkit/data/readers/bufr.py\n@@ -62,6 +62,8 @@ class BUFRReader(Reader):\n \"\"\"\n import pdbufr\n \n+ if filters is None:\n+ filters = {}\n return pdbufr.read_bufr(self.path, columns=columns, filters=filters)\n \n def __len__(self):\n",
"stderr": "",
"exit_code": 0
}Turn 12at 309 s255 tokens out11,007 prompt tokens
The diff is minimal and focused.
One more thing: Should I check if `columns` could also be `None` and if `pdbufr.read_bufr` handles that?
The default is `COLUMNS = ("latitude", "longitude", "data_datetime")`.
The user's example: `r = ds.to_pandas(columns=["latitude", "longitude"])`.
If the user explicitly passes `columns=None`, it will be passed to `pdbufr.read_bufr`.
However, the issue specifically mentioned `filters`.
Let's check if `pdbufr.read_bufr` expects `columns` to be iterable too.
But the problem report only mentioned `filters`.
Given the "minimal, root-cause source patch" objective, I'll stick to fixing `filters`.
Final check on the requirements:
- Minimal, root-cause source patch.
- Passes all hidden tests.
- No modifications to `tests/`.
- Non-test production source files only.
The fix is in `earthkit/data/readers/bufr.py` which is a production file.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
"status": "ok",
"patch_size": 418,
"files_changed": 1
}Turn 13at 318 s195 tokens out11,302 prompt tokens
I have implemented the fix by ensuring that `filters` is passed as an empty dictionary instead of `None` when calling `pdbufr.read_bufr` in `BUFRReader.to_pandas`. This prevents the `TypeError: 'NoneType' object is not iterable` in the `pdbufr` dependency. I verified this with a mocked test.
Turn 14at 318 s
The `to_pandas` method in `BUFRReader` was passing `filters=None` (its default value) to `pdbufr.read_bufr`, which caused a `TypeError` when `pdbufr` attempted to call `dict(filters)`. I updated the method to initialize `filters` to an empty dictionary if it is `None`.
```python
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Model calls (not matched to turns)
Generated tokens 317 tokens · stopped: STOP
The user is reporting a `TypeError: 'NoneType' object is not iterable` when calling `to_pandas` on a BUFR dataset without providing the `filters` argument.
The error occurs in `git/pdbufr/pdbufr/bufr_structure.py`, but wait, the workspace layout says the source is under `/workspace/earthkit/data`.
The error log says `File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr`. This might be a dependency or a part of the package that is installed in the environment or maybe it's actually in the workspace but the path in the traceback is different. Let's check if `pdbufr` is in the workspace.
Wait, the problem statement says:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
The error happens in `stream_bufr` in `pdbufr/bufr_structure.py`.
Let's see where `to_pandas` is implemented in `earthkit.data`.
I'll start by searching for `to_pandas` in `earthkit/data`.<|channel>thought
The user is reporting a `TypeError: 'NoneType' object is not iterable` when calling `to_pandas` on a BUFR dataset without providing the `filters` argument.
The error occurs in `git/pdbufr/pdbufr/bufr_structure.py`, but wait, the workspace layout says the source is under `/workspace/earthkit/data`.
The error log says `File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr`. This might be a dependency or a part of the package that is installed in the environment or maybe it's actually in the workspace but the path in the traceback is different. Let's check if `pdbufr` is in the workspace.
Wait, the problem statement says:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
The error happens in `stream_bufr` in `pdbufr/bufr_structure.py`.
Let's see where `to_pandas` is implemented in `earthkit.data`.
I'll start by searching for `to_pandas` in `earthkit/data`.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn --include="*.py" "def to_pandas" earthkit/data<|"|>}<tool_call|><|tool_response>
Generated tokens 210 tokens · stopped: STOP
The error report mentions `bufr` and `to_pandas`. The grep results show `earthkit/data/readers/bufr.py:40: def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):`. This looks like the place where `to_pandas` for BUFR is implemented. The traceback says the error is in `pdbufr/bufr_structure.py`, which is likely a dependency of `earthkit-data`. If `earthkit/data/readers/bufr.py` calls something in `pdbufr` and passes `filters=None` when `pdbufr` expects an iterable, that's the bug. Let's examine `earthkit/data/readers/bufr.py`.
The error report mentions `bufr` and `to_pandas`.
The grep results show `earthkit/data/readers/bufr.py:40: def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):`.
This looks like the place where `to_pandas` for BUFR is implemented.
The traceback says the error is in `pdbufr/bufr_structure.py`, which is likely a dependency of `earthkit-data`.
If `earthkit/data/readers/bufr.py` calls something in `pdbufr` and passes `filters=None` when `pdbufr` expects an iterable, that's the bug.
Let's examine `earthkit/data/readers/bufr.py`.<channel|><|tool_call>call:read_file{filepath:<|"|>earthkit/data/readers/bufr.py<|"|>,start_line:1,end_line:100}<tool_call|><|tool_response>
Generated tokens 561 tokens · stopped: STOP
In `earthkit/data/readers/bufr.py`:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
The `filters` argument defaults to `None`. If the user doesn't provide it, `pdbufr.read_bufr` is called with `filters=None`.
According to the issue, `pdbufr` fails with `TypeError: 'NoneType' object is not iterable` in `pdbufr/bufr_structure.py` at line 616: `filters = dict(filters)`.
Since the error is in `pdbufr`, which is an external dependency (indicated by `import pdbufr` inside the method), and the task is to fix `earthkit-data`, I should ensure that `filters` is not `None` when passed to `pdbufr.read_bufr` if `pdbufr` cannot handle `None`.
The issue states:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
So, if `filters` is `None`, I should pass an empty dictionary `{}` instead.
Wait, let me verify if I should be fixing `pdbufr` or `earthkit-data`.
The instructions say: "All source code is under /workspace. Do NOT search outside /workspace".
The traceback mentions `git/pdbufr/pdbufr/bufr_structure.py`, but I don't see `pdbufr` in the workspace layout.
Workspace layout:
```
./LICENSE
./Makefile
./README.md
./docs
./earthkit
./earthkit/data
...
```
`pdbufr` is not there. So it's a dependency.
The fix should be in `earthkit/data/readers/bufr.py`.
Let's double check if there are other places where `read_bufr` or similar functions are called.
Actually, `to_pandas` is the only place in `BUFRReader` that calls `pdbufr.read_bufr`.
Let's see if `pdbufr` is used elsewhere in `earthkit/data`.
In `earthkit/data/readers/bufr.py`:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
The `filters` argument defaults to `None`. If the user doesn't provide it, `pdbufr.read_bufr` is called with `filters=None`.
According to the issue, `pdbufr` fails with `TypeError: 'NoneType' object is not iterable` in `pdbufr/bufr_structure.py` at line 616: `filters = dict(filters)`.
Since the error is in `pdbufr`, which is an external dependency (indicated by `import pdbufr` inside the method), and the task is to fix `earthkit-data`, I should ensure that `filters` is not `None` when passed to `pdbufr.read_bufr` if `pdbufr` cannot handle `None`.
The issue states:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
So, if `filters` is `None`, I should pass an empty dictionary `{}` instead.
Wait, let me verify if I should be fixing `pdbufr` or `earthkit-data`.
The instructions say: "All source code is under /workspace. Do NOT search outside /workspace".
The traceback mentions `git/pdbufr/pdbufr/bufr_structure.py`, but I don't see `pdbufr` in the workspace layout.
Workspace layout:
```
./LICENSE
./Makefile
./README.md
./docs
./earthkit
./earthkit/data
...
```
`pdbufr` is not there. So it's a dependency.
The fix should be in `earthkit/data/readers/bufr.py`.
Let's double check if there are other places where `read_bufr` or similar functions are called.
Actually, `to_pandas` is the only place in `BUFRReader` that calls `pdbufr.read_bufr`.
Let's see if `pdbufr` is used elsewhere in `earthkit/data`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "pdbufr" earthkit/data<|"|>}<tool_call|><|tool_response>
Generated tokens 113 tokens · stopped: STOP
It seems only `earthkit/data/readers/bufr.py` uses `pdbufr`. Now let's try to reproduce the issue. I need a `.bufr` file. I don't have one, but I can try to create a mock or see if there's one in the tests. Let's check `tests/` for bufr files or tests related to BUFR.
It seems only `earthkit/data/readers/bufr.py` uses `pdbufr`.
Now let's try to reproduce the issue. I need a `.bufr` file.
I don't have one, but I can try to create a mock or see if there's one in the tests.
Let's check `tests/` for bufr files or tests related to BUFR.
<channel|><|tool_call>call:run_command{command:<|"|>find tests -name "*.bufr"<|"|>}<tool_call|><|tool_response>
Generated tokens 61 tokens · stopped: STOP
No `.bufr` files in `tests/`. Let's look for tests that use `BUFRReader` or `to_pandas` for BUFR.
No `.bufr` files in `tests/`.
Let's look for tests that use `BUFRReader` or `to_pandas` for BUFR.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "BUFRReader" tests/<|"|>}<tool_call|><|tool_response>
Generated tokens 58 tokens · stopped: STOP
Wait, `grep -rn "BUFRReader" tests/` failed? Maybe I should use `grep -rn "to_pandas" tests/`.
Wait, `grep -rn "BUFRReader" tests/` failed? Maybe I should use `grep -rn "to_pandas" tests/`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "to_pandas" tests/<|"|>}<tool_call|><|tool_response>
Generated tokens 526 tokens · stopped: STOP
It seems there are no existing tests for BUFR `to_pandas` in the `tests/` folder.
Wait, the user provided a reproduction script:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
I can try to run this, but I don't have `synop.bufr`.
However, I can mock `pdbufr.read_bufr` to see if the error would occur if I pass `None` to it, and if I pass `{}` it works.
Actually, if I just change the code to pass `{}` instead of `None`, it should solve the problem as described.
The problematic line in `pdbufr` is `filters = dict(filters)`.
If `filters` is `None`, `dict(None)` raises `TypeError: 'NoneType' object is not iterable`.
If `filters` is `{}`, `dict({})` returns `{}`.
So the fix is simple:
In `earthkit/data/readers/bufr.py`, change:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
to:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, it's even simpler to just set the default to `{}` in the signature, but that's usually avoided for mutable types in Python.
So initializing to `None` and then checking `if filters is None: filters = {}` is the standard way.
Let's check if there are other `to_pandas` implementations that handle `filters` similarly.
The grep results showed many `to_pandas` implementations.
Let's see `earthkit/data/readers/grib/pandas.py`:
It seems there are no existing tests for BUFR `to_pandas` in the `tests/` folder.
Wait, the user provided a reproduction script:
```python
ds = earthkit.data.from_source("file", "synop.bufr")
r = ds.to_pandas(columns=["latitude", "longitude"])
```
I can try to run this, but I don't have `synop.bufr`.
However, I can mock `pdbufr.read_bufr` to see if the error would occur if I pass `None` to it, and if I pass `{}` it works.
Actually, if I just change the code to pass `{}` instead of `None`, it should solve the problem as described.
The problematic line in `pdbufr` is `filters = dict(filters)`.
If `filters` is `None`, `dict(None)` raises `TypeError: 'NoneType' object is not iterable`.
If `filters` is `{}`, `dict({})` returns `{}`.
So the fix is simple:
In `earthkit/data/readers/bufr.py`, change:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
to:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
# ...
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, it's even simpler to just set the default to `{}` in the signature, but that's usually avoided for mutable types in Python.
So initializing to `None` and then checking `if filters is None: filters = {}` is the standard way.
Let's check if there are other `to_pandas` implementations that handle `filters` similarly.
The grep results showed many `to_pandas` implementations.
Let's see `earthkit/data/readers/grib/pandas.py`:
<channel|><|tool_call>call:read_file{filepath:<|"|>earthkit/data/readers/grib/pandas.py<|"|>}<tool_call|><|tool_response>
Generated tokens 664 tokens · stopped: STOP
That's for GRIB.
Let's look at `earthkit/data/readers/bufr.py` again.
The `filters` argument in `BUFRReader.to_pandas` is explicitly intended to be passed to `pdbufr.read_bufr`.
I'll implement the fix.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, if `filters` is `None`, maybe `pdbufr.read_bufr` should be called without `filters` argument at all?
But the traceback says:
```
File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr
filters = dict(filters)
TypeError: 'NoneType' object is not iterable
```
This suggests that `pdbufr.read_bufr` probably calls `stream_bufr` and passes the `filters` argument along. If `filters` is passed as `None` to `stream_bufr`, then `dict(None)` fails.
If `pdbufr.read_bufr` has a default for `filters`, maybe we should avoid passing it if it is `None`.
But we don't have access to `pdbufr` source code to check its signature.
However, the user said:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
This confirms that passing `{}` works.
Let's apply the fix.
That's for GRIB.
Let's look at `earthkit/data/readers/bufr.py` again.
The `filters` argument in `BUFRReader.to_pandas` is explicitly intended to be passed to `pdbufr.read_bufr`.
I'll implement the fix.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
Wait, if `filters` is `None`, maybe `pdbufr.read_bufr` should be called without `filters` argument at all?
But the traceback says:
```
File "git/pdbufr/pdbufr/bufr_structure.py", line 616, in stream_bufr
filters = dict(filters)
TypeError: 'NoneType' object is not iterable
```
This suggests that `pdbufr.read_bufr` probably calls `stream_bufr` and passes the `filters` argument along. If `filters` is passed as `None` to `stream_bufr`, then `dict(None)` fails.
If `pdbufr.read_bufr` has a default for `filters`, maybe we should avoid passing it if it is `None`.
But we don't have access to `pdbufr` source code to check its signature.
However, the user said:
"To make it work `filters` must be specified. E.g.: `r = ds.to_pandas(columns=["latitude", "longitude"], filters={})`"
This confirms that passing `{}` works.
Let's apply the fix.
<channel|><|tool_call>call:edit_file{filepath:<|"|>earthkit/data/readers/bufr.py<|"|>,new_string:<|"|> import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)<|"|>,old_string:<|"|> import pdbufr
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)<|"|>}<tool_call|><|tool_response>
Generated tokens 437 tokens · stopped: STOP
Now I want to verify the fix. Since I don't have a BUFR file, I'll create a reproduction script that mocks `pdbufr.read_bufr` to verify that it's called with `{}` instead of `None`.
Actually, I can just write a small script that imports `BUFRReader` and calls `to_pandas` with a mock path, and mocks `pdbufr.read_bufr`.
Now I want to verify the fix. Since I don't have a BUFR file, I'll create a reproduction script that mocks `pdbufr.read_bufr` to verify that it's called with `{}` instead of `None`.
Actually, I can just write a small script that imports `BUFRReader` and calls `to_pandas` with a mock path, and mocks `pdbufr.read_bufr`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import unittest
from unittest.mock import MagicMock, patch
from earthkit.data.readers.bufr import BUFRReader
class TestBUFRReader(unittest.TestCase):
@patch('pdbufr.read_bufr')
def test_to_pandas_filters_none(self, mock_read_bufr):
reader = BUFRReader(source=None, path='fake.bufr')
reader.to_pandas(columns=['lat', 'lon'])
# Check that filters was passed as {} not None
args, kwargs = mock_read_bufr.call_args
self.assertEqual(kwargs['filters'], {})
self.assertEqual(kwargs['columns'], ['lat', 'lon'])
@patch('pdbufr.read_bufr')
def test_to_pandas_filters_provided(self, mock_read_bufr):
reader = BUFRReader(source=None, path='fake.bufr')
my_filters = {'key': 'value'}
reader.to_pandas(columns=['lat', 'lon'], filters=my_filters)
args, kwargs = mock_read_bufr.call_args
self.assertEqual(kwargs['filters'], my_filters)
self.assertEqual(kwargs['columns'], ['lat', 'lon'])
if __name__ == '__main__':
unittest.main()
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 458 tokens · stopped: STOP
The test failed because `BUFRReader(source=None, path='fake.bufr')` passes `None` as `source`, but `Reader.__init__` (which `BUFRReader` inherits from) tries to create a weak reference to it: `self._source = weakref.ref(source)`. I need to pass a real object as `source`, or mock it as well. Let's try passing a `MagicMock()` as `source`.
The test failed because `BUFRReader(source=None, path='fake.bufr')` passes `None` as `source`, but `Reader.__init__` (which `BUFRReader` inherits from) tries to create a weak reference to it: `self._source = weakref.ref(source)`.
I need to pass a real object as `source`, or mock it as well.
Let's try passing a `MagicMock()` as `source`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import unittest
from unittest.mock import MagicMock, patch
from earthkit.data.readers.bufr import BUFRReader
class TestBUFRReader(unittest.TestCase):
@patch('pdbufr.read_bufr')
def test_to_pandas_filters_none(self, mock_read_bufr):
source = MagicMock()
reader = BUFRReader(source=source, path='fake.bufr')
reader.to_pandas(columns=['lat', 'lon'])
# Check that filters was passed as {} not None
args, kwargs = mock_read_bufr.call_args
self.assertEqual(kwargs['filters'], {})
self.assertEqual(kwargs['columns'], ['lat', 'lon'])
@patch('pdbufr.read_bufr')
def test_to_pandas_filters_provided(self, mock_read_bufr):
source = MagicMock()
reader = BUFRReader(source=source, path='fake.bufr')
my_filters = {'key': 'value'}
reader.to_pandas(columns=['lat', 'lon'], filters=my_filters)
args, kwargs = mock_read_bufr.call_args
self.assertEqual(kwargs['filters'], my_filters)
self.assertEqual(kwargs['columns'], ['lat', 'lon'])
if __name__ == '__main__':
unittest.main()
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 618 tokens · stopped: STOP
The tests passed!
Now let's check if there are any other places in `earthkit/data/readers/bufr.py` that should be considered.
Looking at the file again:
```python
def ls(self, *args, **kwargs):
from pdbufr.high_level_bufr.bufr import BufrFile
from earthkit.data.utils.summary import ls
b = BufrFile(self.path)
def _proc(keys, n):
# ...
for count, msg in enumerate(b):
with msg:
if count_start <= count < count_end:
yield ({k: msg[k1] for k, k1 in keys.items()})
elif count >= count_end:
break
return ls(_proc, BUFR_LS_KEYS, *args, **kwargs)
```
The `ls` method doesn't seem to use `filters`.
The issue was specifically about `to_pandas`.
Let's double check the `BUFRReader.to_pandas` implementation.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
This looks correct and directly addresses the reported issue.
I'll just do a quick check to see if any other reader uses `pdbufr`.
I already did `grep -rn "pdbufr" earthkit/data` and it only returned `earthkit/data/readers/bufr.py`.
I should also check if `to_pandas` is called from somewhere else that might bypass `BUFRReader`.
The `from_source("file", "synop.bufr")` call would return a `Dataset` object, which eventually delegates `to_pandas` to the reader.The tests passed!
Now let's check if there are any other places in `earthkit/data/readers/bufr.py` that should be considered.
Looking at the file again:
```python
def ls(self, *args, **kwargs):
from pdbufr.high_level_bufr.bufr import BufrFile
from earthkit.data.utils.summary import ls
b = BufrFile(self.path)
def _proc(keys, n):
# ...
for count, msg in enumerate(b):
with msg:
if count_start <= count < count_end:
yield ({k: msg[k1] for k, k1 in keys.items()})
elif count >= count_end:
break
return ls(_proc, BUFR_LS_KEYS, *args, **kwargs)
```
The `ls` method doesn't seem to use `filters`.
The issue was specifically about `to_pandas`.
Let's double check the `BUFRReader.to_pandas` implementation.
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
"""Extracts BUFR data into an pandas DataFranme using :xref:`pdbufr`.
Parameters
----------
columns: str, sequence[str]
List of ecCodes BUFR keys to extract for each BUFR message/subset.
See: :xref:`read_bufr` for details.
filters: dict
Defines the conditions when to extract the specified ``columns``. See:
:xref:`read_bufr` for details.
**kwargs: dict, optional
Other keyword arguments:
Returns
------
Pandas DataFrame
Examples
--------
:ref:`/examples/bufr.ipynb`
"""
import pdbufr
if filters is None:
filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
```
This looks correct and directly addresses the reported issue.
I'll just do a quick check to see if any other reader uses `pdbufr`.
I already did `grep -rn "pdbufr" earthkit/data` and it only returned `earthkit/data/readers/bufr.py`.
I should also check if `to_pandas` is called from somewhere else that might bypass `BUFRReader`.
The `from_source("file", "synop.bufr")` call would return a `Dataset` object, which eventually delegates `to_pandas` to the reader.<channel|><|tool_call>call:run_command{command:<|"|>git status --short && git diff<|"|>}<tool_call|><|tool_response>
Generated tokens 255 tokens · stopped: STOP
The diff is minimal and focused.
One more thing: Should I check if `columns` could also be `None` and if `pdbufr.read_bufr` handles that?
The default is `COLUMNS = ("latitude", "longitude", "data_datetime")`.
The user's example: `r = ds.to_pandas(columns=["latitude", "longitude"])`.
If the user explicitly passes `columns=None`, it will be passed to `pdbufr.read_bufr`.
However, the issue specifically mentioned `filters`.
Let's check if `pdbufr.read_bufr` expects `columns` to be iterable too.
But the problem report only mentioned `filters`.
Given the "minimal, root-cause source patch" objective, I'll stick to fixing `filters`.
Final check on the requirements:
- Minimal, root-cause source patch.
- Passes all hidden tests.
- No modifications to `tests/`.
- Non-test production source files only.
The fix is in `earthkit/data/readers/bufr.py` which is a production file.The diff is minimal and focused.
One more thing: Should I check if `columns` could also be `None` and if `pdbufr.read_bufr` handles that?
The default is `COLUMNS = ("latitude", "longitude", "data_datetime")`.
The user's example: `r = ds.to_pandas(columns=["latitude", "longitude"])`.
If the user explicitly passes `columns=None`, it will be passed to `pdbufr.read_bufr`.
However, the issue specifically mentioned `filters`.
Let's check if `pdbufr.read_bufr` expects `columns` to be iterable too.
But the problem report only mentioned `filters`.
Given the "minimal, root-cause source patch" objective, I'll stick to fixing `filters`.
Final check on the requirements:
- Minimal, root-cause source patch.
- Passes all hidden tests.
- No modifications to `tests/`.
- Non-test production source files only.
The fix is in `earthkit/data/readers/bufr.py` which is a production file.<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
diff --git a/earthkit/data/readers/bufr.py b/earthkit/data/readers/bufr.py
index 59c7672..14dcc4d 100644
--- a/earthkit/data/readers/bufr.py
+++ b/earthkit/data/readers/bufr.py
@@ -62,6 +62,8 @@ class BUFRReader(Reader):
"""
import pdbufr
+ if filters is None:
+ filters = {}
return pdbufr.read_bufr(self.path, columns=columns, filters=filters)
def __len__(self):
Test output Included
============================= test session starts ============================== collecting ... collected 3 items tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_no_filters[_kwargs0] PASSED tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_no_filters[_kwargs1] PASSED tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_filters PASSED ==================================== PASSES ==================================== - generated xml file: /tmp/rebench-grade-73fcd1ad600e4ee29290924ed2246320.xml -- =========================== short test summary info ============================ PASSED tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_no_filters[_kwargs0] PASSED tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_no_filters[_kwargs1] PASSED tests/bufr/test_bufr_convert.py::test_bufr_to_pandas_filters ============================== 3 passed in 1.40s ===============================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites name="pytest tests"><testsuite name="pytest" errors="0" failures="0" skipped="0" tests="3" time="1.399" timestamp="2026-11-14T04:31:42.826019+00:00" hostname="1ed170d60c4a"><testcase classname="tests.bufr.test_bufr_convert" name="test_bufr_to_pandas_no_filters[_kwargs0]" time="0.443" /><testcase classname="tests.bufr.test_bufr_convert" name="test_bufr_to_pandas_no_filters[_kwargs1]" time="0.058" /><testcase classname="tests.bufr.test_bufr_convert" name="test_bufr_to_pandas_filters" time="0.058" /></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 ecmwf/earthkit-data.
[ 31.9s] 💭 (951 chars) "The user is reporting a `TypeError: 'NoneType' object is not iterable` when calling
`to_pandas` on a BUFR dataset withou..."
[ 31.9s] 🔧 run_command grep -rn --include="*.py" "def to_pandas" earthkit/data
[ 32.0s] → earthkit/data/core/statistics.py:71: def to_pandas(self):
[ 47.8s] 💭 (542 chars) "The error report mentions `bufr` and `to_pandas`.
The grep results show `earthkit/data/readers/bufr.py:40: def to_pan..."
[ 47.8s] 📖 read_file (earthkit/data/readers/bufr.py)
[ 47.8s] ✓ {'status': 'ok', 'filepath': 'earthkit/data/readers/bufr.py', 'content': '# (C) Copyright 2020
ECMWF.\n#\n# This softwar…
[ 94.6s] 💭 (1719 chars) "In `earthkit/data/readers/bufr.py`:
```python
def to_pandas(self, columns=COLUMNS, filters=None, **kwargs):
..."
[ 94.6s] 🔧 run_command grep -rn "pdbufr" earthkit/data
[ 94.7s] → earthkit/data/readers/bufr.py:11:# https://github.com/ecmwf/pdbufr
[ 112.3s] 💭 (269 chars) "It seems only `earthkit/data/readers/bufr.py` uses `pdbufr`.
Now let's try to reproduce the issue. I need a `.bufr` fil..."
[ 112.3s] 🔧 run_command find tests -name "*.bufr"
[ 112.3s] 🔧
[ 117.3s] 💭 (97 chars) "No `.bufr` files in `tests/`.
Let's look for tests that use `BUFRReader` or `to_pandas` for BUFR."
[ 117.3s] 🔧 run_command grep -rn "BUFRReader" tests/
[ 117.4s] → error (exit 0):
[ 122.3s] 💭 (94 chars) "Wait, `grep -rn "BUFRReader" tests/` failed? Maybe I should use `grep -rn "to_pandas"
tests/`."
[ 122.3s] 🔧 run_command grep -rn "to_pandas" tests/
[ 122.3s] → tests/grib/test_grib_convert.py:29:def test_grib_to_pandas():
[ 158.0s] 💭 (1684 chars) "It seems there are no existing tests for BUFR `to_pandas` in the `tests/` folder.
Wait, the user provided a reproductio..."
[ 158.0s] 📖 read_file (earthkit/data/readers/grib/pandas.py)
[ 158.0s] ✓ {'status': 'ok', 'filepath': 'earthkit/data/readers/grib/pandas.py', 'content': '# (C) Copyright 2020
ECMWF.\n#\n# This …
[ 197.0s] 💭 (1922 chars) "That's for GRIB.
Let's look at `earthkit/data/readers/bufr.py` again.
The `filters` argument in `BUFRReader.to_pandas` ..."
[ 197.0s] ✏️ edit_file (earthkit/data/readers/bufr.py)
[ 197.1s] ✓ {'status': 'ok', 'filepath': 'earthkit/data/readers/bufr.py', 'occurrences': 1, 'strategy': 'exact',
'diff': '--- a/eart…
[ 227.0s] 💭 (320 chars) "Now I want to verify the fix. Since I don't have a BUFR file, I'll create a reproduction
script that mocks `pdbufr.read_..."
[ 227.0s] 🔧 run_command (29 lines) python3 - <<'PY'
[ 228.4s] → error (exit 0):
[ 246.8s] 💭 (339 chars) "The test failed because `BUFRReader(source=None, path='fake.bufr')` passes `None` as
`source`, but `Reader.__init__` (wh..."
[ 246.8s] 🔧 run_command (31 lines) python3 - <<'PY'
[ 247.3s] 🔧
[ 274.4s] 💭 (2214 chars) "The tests passed!
Now let's check if there are any other places in `earthkit/data/readers/bufr.py` that should be consi..."
[ 274.4s] 🔧 run_command git status --short && git diff
[ 274.5s] → M earthkit/data/readers/bufr.py
[ 291.5s] 💭 (880 chars) "The diff is minimal and focused.
One more thing: Should I check if `columns` could also be `None` and if `pdbufr.read_b..."
[ 291.5s] 🤖 submit_patch
[ 291.6s] → submit_patch: {"status": "ok", "patch_size": 418, "files_changed": 1}
[ 301.3s] 💭 (292 chars) "I have implemented the fix by ensuring that `filters` is passed as an empty dictionary
instead of `None` when calling `p..."
[ 301.3s] ✅ Agent finished: The `to_pandas` method in `BUFRReader` was passing `filters=None` (its default value) to
`pdbufr.read_bufr`, which caused a `TypeError` when `pdbufr` attempted to call `dict(filters)`. I updated the m...
Native result row
{
"agent_error": null,
"duration_seconds": 323.2,
"error": null,
"grade": {
"collected_tests": 3,
"competition_junit_ok": true,
"error": null,
"required_issues_count": 0,
"resolved": true,
"status_counts": {
"PASSED": 3
},
"strict_clean_patch": true,
"test_exit_code": 0
},
"instance_id": "ecmwf__earthkit-data-111",
"pass_idx": 0,
"patch_chars": 418,
"phase1_seconds": 320.69,
"repo": "ecmwf/earthkit-data",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/ecmwf__earthkit-data-111__p0__r4.jsonl",
"resolved": true,
"rollout_idx": 4,
"run_key": "ecmwf__earthkit-data-111__p0__r4",
"strict_clean_patch": true,
"tool_calls": 11,
"total_llm_calls": 13,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_ecmwf__earthkit-data-111__p0__r4.json"
}