mmap constructor resets the file pointer on Windows
Open
Nobody has claimed this yet.
3.15
OS-windows
stdlib
topic-IO
type-feature
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 36k
- PR merge metrics
- PR metrics pending
Description
| BPO | 46858 |
|---|---|
| Nosy | @pfmoore, @tjguk, @zware, @eryksun, @zooba |
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 2022-02-25.20:47:49.811>
labels = ['type-bug', '3.9', 'expert-IO', '3.11', 'library', '3.10', 'OS-windows']
title = 'mmap constructor resets the file pointer on Windows'
updated_at = <Date 2022-02-26.05:08:48.141>
user = 'https://bugs.python.org/benrg'
bugs.python.org fields:
activity = <Date 2022-02-26.05:08:48.141>
actor = 'eryksun'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)', 'Windows', 'IO']
creation = <Date 2022-02-25.20:47:49.811>
creator = 'benrg'
dependencies = []
files = []
hgrepos = []
issue_num = 46858
keywords = []
message_count = 2.0
messages = ['414039', '414071']
nosy_count = 6.0
nosy_names = ['paul.moore', 'tim.golden', 'benrg', 'zach.ware', 'eryksun', 'steve.dower']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue46858'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the mmap constructor behavior on Windows and inspect the constructor's file-pointer handling in the Python IO and mmap implementation. Done means the constructor no longer unexpectedly resets the file pointer, with regression coverage for the reported behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100