ValueError: can't have unbuffered text I/O for io.open(1, 'wt', 0)

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#61,606 7 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend

Research direction

Start by reproducing the reported call, io.open(1, 'wt', 0), and inspect Python's IO component to determine whether the ValueError is expected or indicates a bug. The issue does not name source files or tests; done should include an agreed behavior and coverage for the unbuffered text-I/O case.

Written by the indexing model from the issue text.

Description

stdlib topic-IO type-bug
BPO 17404
Nosy @amauryfa, @pitrou, @rbtcollins, @benjaminp, @hynek, @vadmium, @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 2013-03-12.14:42:40.965>
labels = ['3.10', 'type-bug', '3.8', '3.9', 'expert-IO']
title = "ValueError: can't have unbuffered text I/O for io.open(1,\t'wt', 0)"
updated_at = <Date 2020-11-06.22:51:34.480>
user = 'https://github.com/rbtcollins'

bugs.python.org fields:

activity = <Date 2020-11-06.22:51:34.480>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['IO']
creation = <Date 2013-03-12.14:42:40.965>
creator = 'rbcollins'
dependencies = []
files = []
hgrepos = []
issue_num = 17404
keywords = []
message_count = 7.0
messages = ['184025', '184040', '184041', '184045', '184072', '184073', '332739']
nosy_count = 8.0
nosy_names = ['amaury.forgeotdarc', 'pitrou', 'rbcollins', 'benjamin.peterson', 'stutzbach', 'hynek', 'martin.panter', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue17404'
versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']

Dominant language
Python
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Avg merge
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Merged PRs (30d)
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