sys.stdin.readline and KeyboardInterrupt on windows

[miwa]

BPO	14287
Nosy	@vadmium
Superseder	bpo-18597: On Windows sys.stdin.readline() doesn't handle Ctrl-C properly
Files	z.py

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2015-06-06.05:21:35.649>
created_at = <Date 2012-03-13.14:07:04.820>
labels = ['type-bug', 'OS-windows']
title = 'sys.stdin.readline and KeyboardInterrupt on windows'
updated_at = <Date 2015-06-06.05:21:35.647>
user = 'https://bugs.python.org/miwa'

bugs.python.org fields:

activity = <Date 2015-06-06.05:21:35.647>
actor = 'martin.panter'
assignee = 'none'
closed = True
closed_date = <Date 2015-06-06.05:21:35.649>
closer = 'martin.panter'
components = ['Windows']
creation = <Date 2012-03-13.14:07:04.820>
creator = 'miwa'
dependencies = []
files = ['24821']
hgrepos = []
issue_num = 14287
keywords = []
message_count = 3.0
messages = ['155612', '222184', '244893']
nosy_count = 3.0
nosy_names = ['miwa', 'BreamoreBoy', 'martin.panter']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '18597'
type = 'behavior'
url = 'https://bugs.python.org/issue14287'
versions = ['Python 2.7', 'Python 3.2']

[miwa]

I run z.py and press Ctrl-C.

''
Traceback (most recent call last):
  File "z.py", line 7, in <module>
    print(repr(x))
KeyboardInterrupt

I think '' should not be printed. This sometimes occurs on Python 3.2.2 and 2.7.2 AMD64 on Windows7, but doesn't occur on ubuntu.

[BreamoreBoy]

FWIW the same occurs on Windows 7 with 3.5.0 but given there are known differences between Windows and *nix is this really an issue?

[vadmium]

If the interrupt truly occurred after readline() succeeded, then x should contain actual input from the user, not the empty string. So I think this is a valid bug.

However it looks like this is the same as bpo-18597, which has more discussion.