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object returned by tarfile.extractfile has an incorrect value of name attribute #74468
Description
| BPO | 30282 |
|---|---|
| Nosy | @gustaebel, @xondrejk |
| PRs |
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields:
assignee = None
closed_at = None
created_at = <Date 2017-05-05.15:09:35.461>
labels = ['3.7', 'type-bug', 'library']
title = 'object returned by tarfile.extractfile has an incorrect value of name attribute'
updated_at = <Date 2017-05-05.20:36:09.009>
user = 'https://github.com/xondrejk'bugs.python.org fields:
activity = <Date 2017-05-05.20:36:09.009>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2017-05-05.15:09:35.461>
creator = 'Ondrej Kubecka'
dependencies = []
files = []
hgrepos = []
issue_num = 30282
keywords = []
message_count = 1.0
messages = ['293111']
nosy_count = 2.0
nosy_names = ['lars.gustaebel', 'Ondrej Kubecka']
pr_nums = ['1483']
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue30282'
versions = ['Python 3.3', 'Python 3.4', 'Python 3.5', 'Python 3.6', 'Python 3.7']
Activity
xondrejk commentedon May 5, 2017
Consider the following code snippet:
<snip>
import tarfile
Up until 3.2.x, the value of name attribute would be 'FILE' as derived from tarinfo of the member. Starting with 3.3 (commits: b062a2f 7a919e9) this value be obtained from tarfile.fileobj ("parent" tarball file) and would return 'tar1.tar.gz' instead.
This does not seem to be correct as it's not a filename of the ExFileObject / _FileInFile / io.BufferedReader object itself which would otherwise be consistent with values normally found under name.
There is also a problem that this information no longer appears to be accessible at all looking at the object returned from extractfile alone.
And looking at release notes of 3.3, this does not seem to be intentional effect.
gh-74468: [tarfile] Fix incorrect name attribute of ExFileObject (GH-…
pythongh-74468: [tarfile] Fix incorrect name attribute of ExFileObject (