test_signal in test_subprocess displays traceback

[pitrou]

BPO	8246
Nosy	@gpshead, @pitrou, @florentx

^{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 = 'https://github.com/florentx'
closed_at = <Date 2010-03-27.22:50:28.715>
created_at = <Date 2010-03-27.18:32:19.613>
labels = ['type-bug', 'tests']
title = 'test_signal in test_subprocess displays traceback'
updated_at = <Date 2010-03-27.22:50:28.713>
user = 'https://github.com/pitrou'

bugs.python.org fields:

activity = <Date 2010-03-27.22:50:28.713>
actor = 'flox'
assignee = 'flox'
closed = True
closed_date = <Date 2010-03-27.22:50:28.715>
closer = 'flox'
components = ['Tests']
creation = <Date 2010-03-27.18:32:19.613>
creator = 'pitrou'
dependencies = []
files = []
hgrepos = []
issue_num = 8246
keywords = []
message_count = 3.0
messages = ['101836', '101842', '101848']
nosy_count = 4.0
nosy_names = ['gregory.p.smith', 'pitrou', 'gps', 'flox']
pr_nums = []
priority = 'low'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue8246'
versions = ['Python 3.2']

[pitrou]

test_signal in test_subprocess doesn't mute the subprocess stderr, which gives output such as:

test_subprocess
.
    this bit of output is from a test of stdout in a different process ...
.
    this bit of output is from a test of stdout in a different process ...
.
    this bit of output is from a test of stdout in a different process ...
Traceback (most recent call last):
  File "<string>", line 1, in <module>
KeyboardInterrupt
Traceback (most recent call last):
  File "<string>", line 1, in <module>
KeyboardInterrupt

[florentx]

It is already fixed in 2.7, with r79344, r79346 and r79350.

Need porting to other branches.

[florentx]

Merged in 3.x with r79473