python / python/cpython

os.writev() does not accept generators (as buffers argument)

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stdlib type-bug
Dominant language
Python
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Description

BPO 27020
Nosy @socketpair, @serhiy-storchaka

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 2016-05-14.17:30:43.196>
labels = ['type-bug', 'library']
title = 'os.writev() does not accept generators (as buffers argument)'
updated_at = <Date 2016-05-16.06:10:27.894>
user = 'https://github.com/socketpair'

bugs.python.org fields:

activity = <Date 2016-05-16.06:10:27.894>
actor = 'socketpair'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2016-05-14.17:30:43.196>
creator = 'socketpair'
dependencies = []
files = []
hgrepos = []
issue_num = 27020
keywords = []
message_count = 7.0
messages = ['265536', '265542', '265578', '265579', '265667', '265668', '265669']
nosy_count = 2.0
nosy_names = ['socketpair', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue27020'
versions = ['Python 3.3', 'Python 3.4', 'Python 3.5', 'Python 3.6']

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the os.writev() entry point and reproduce the reported behavior with a generator as its buffers argument. Locate the implementation and relevant tests, then verify that generator inputs are accepted without changing existing buffer behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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