Skip to content
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions doc/source/whatsnew/v3.0.0.rst
Original file line number Diff line number Diff line change
Expand Up @@ -784,6 +784,7 @@ Other
- Bug in :meth:`Series.dt` methods in :class:`ArrowDtype` that were returning incorrect values. (:issue:`57355`)
- Bug in :meth:`Series.rank` that doesn't preserve missing values for nullable integers when ``na_option='keep'``. (:issue:`56976`)
- Bug in :meth:`Series.replace` and :meth:`DataFrame.replace` inconsistently replacing matching instances when ``regex=True`` and missing values are present. (:issue:`56599`)
- Bug in :meth:`read_csv` where chained fsspec TAR file and ``compression="infer"`` fails with ``tarfile.ReadError`` (:issue:`60028`)
- Bug in Dataframe Interchange Protocol implementation was returning incorrect results for data buffers' associated dtype, for string and datetime columns (:issue:`54781`)
- Bug in ``Series.list`` methods not preserving the original :class:`Index`. (:issue:`58425`)

Expand Down
3 changes: 3 additions & 0 deletions pandas/io/common.py
Original file line number Diff line number Diff line change
Expand Up @@ -584,6 +584,9 @@ def infer_compression(
# Infer compression
if compression == "infer":
# Convert all path types (e.g. pathlib.Path) to strings
if isinstance(filepath_or_buffer, str) and "::" in filepath_or_buffer:
# chained URLs contain ::
filepath_or_buffer = filepath_or_buffer.split("::")[0]
filepath_or_buffer = stringify_path(filepath_or_buffer, convert_file_like=True)
if not isinstance(filepath_or_buffer, str):
# Cannot infer compression of a buffer, assume no compression
Expand Down
Binary file added pandas/tests/io/data/tar/test-csv.tar
Binary file not shown.
14 changes: 14 additions & 0 deletions pandas/tests/io/test_common.py
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
WASM,
is_platform_windows,
)
import pandas.util._test_decorators as td

import pandas as pd
import pandas._testing as tm
Expand Down Expand Up @@ -642,6 +643,19 @@ def close(self):
handles.created_handles.append(TestError())


@td.skip_if_no("fsspec", min_version="2023.1.0")
@pytest.mark.parametrize("compression", [None, "infer"])
def test_read_csv_chained_url_no_error(compression):
# GH 60100
tar_file_path = "pandas/tests/io/data/tar/test-csv.tar"
chained_file_url = f"tar://test.csv::file://{tar_file_path}"

result = pd.read_csv(chained_file_url, compression=compression, sep=";")
expected = pd.DataFrame({"1": {0: 3}, "2": {0: 4}})

tm.assert_frame_equal(expected, result)


@pytest.mark.parametrize(
"reader",
[
Expand Down