[issue35978] test_venv fails in Travis with GCC

[Xavier de Gaye]

Change by Xavier de Gaye :


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[issue35978] test_venv fails in Travis with GCC

[Steve Dower]

Change by Steve Dower :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue35978] test_venv fails in Travis with GCC

[miss-islington]

miss-islington  added the comment:


New changeset b0967fe4ed2e0e15f14ea574f82970a3fd4a5556 by Miss Islington (bot) 
in branch '3.7':
bpo-35978: Correctly skips venv tests in venvs (GH-12220)
https://github.com/python/cpython/commit/b0967fe4ed2e0e15f14ea574f82970a3fd4a5556


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[issue35978] test_venv fails in Travis with GCC

[Steve Dower]

Steve Dower  added the comment:


New changeset 8bba81fd55873148c65b7d0e6a6effbd63048c76 by Steve Dower in branch 
'master':
bpo-35978: Correctly skips venv tests in venvs (GH-12220)
https://github.com/python/cpython/commit/8bba81fd55873148c65b7d0e6a6effbd63048c76


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[issue35978] test_venv fails in Travis with GCC

[miss-islington]

Change by miss-islington :


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[issue35978] test_venv fails in Travis with GCC

[Steve Dower]

Change by Steve Dower :


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keywords: +patch
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stage:  -> patch review

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[issue35978] test_venv fails in Travis with GCC

[Steve Dower]

Steve Dower  added the comment:

I'm on this. I'll make a new (or possibly complete replacement) for @skipInVenv 
that is @requireVenvCreate, since that's the common piece that doesn't work in 
a venv (except on Windows).

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assignee:  -> steve.dower
versions: +Python 3.7

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[issue35978] test_venv fails in Travis with GCC

[Steve Dower]

Steve Dower  added the comment:

I guess we need a "skipInLinuxVenv", since it works fine on Windows :)

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[issue35978] test_venv fails in Travis with GCC

[STINNER Victor]

STINNER Victor  added the comment:

Hum, test_executable() of test_venv is skipped if run in a venv, but not 
test_multiprocessing():

# If a venv is created from a source build and that venv is used to
# run the test, the pyvenv.cfg in the venv created in the test will
# point to the venv being used to run the test, and we lose the link
# to the source build - so Python can't initialise properly.
@skipInVenv
...
self.run_with_capture(venv.create, self.env_dir)
envpy = os.path.join(os.path.realpath(self.env_dir),
 self.bindir, self.exe)
...

def test_multiprocessing(self):
...
self.run_with_capture(venv.create, self.env_dir)
envpy = os.path.join(os.path.realpath(self.env_dir),
 self.bindir, self.exe)
...

The test has been added by:

commit 4e02f8f8b4baab63f927cfd87b401200ba2969e9
Author: Steve Dower 
Date:   Fri Jan 25 14:59:12 2019 -0800

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[issue35978] test_venv fails in Travis with GCC

[STINNER Victor]

STINNER Victor  added the comment:

The Python of the virtual environment created by the test doesn't work:

$ /tmp/tmp0vybyos2/bin/python -c pass
Could not find platform independent libraries 
Could not find platform dependent libraries 
Consider setting $PYTHONHOME to [:]
Fatal Python error: initfsencoding: failed to get the Python codec of the 
filesystem encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x7f2956ab8740 (most recent call first):
Aborted

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[issue35978] test_venv fails in Travis with GCC

[STINNER Victor]

STINNER Victor  added the comment:

I can reproduce the crash using the same command than the job.

Simplified commands to reproduce the bug:

./configure && make
./python -m venv venv
./venv/bin/python -m test test_venv -m 
test.test_venv.BasicTest.test_multiprocessing

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[issue35978] test_venv fails in Travis with GCC

[Pablo Galindo Salgado]

Pablo Galindo Salgado  added the comment:

That looks like a similar example of the problem that bpo35378 solves. But the 
PR is merged and the test keeps failing:

test test_venv failed -- Traceback (most recent call last):
  File "/home/travis/build/python/cpython/Lib/test/test_venv.py", line 309, in 
test_multiprocessing
out, err = check_output([envpy, '-c',
  File "/home/travis/build/python/cpython/Lib/test/test_venv.py", line 37, in 
check_output
raise subprocess.CalledProcessError(
subprocess.CalledProcessError: Command '['/tmp/tmplplx90pf/bin/python', '-c', 
'from multiprocessing import Pool; 
print(Pool(1).apply_async("Python".lower).get(3))']' died with 
.

https://travis-ci.org/python/cpython/jobs/492305033


Running that command locally on master does not die with SIGABRT:

❯ ./python -c 'from multiprocessing import Pool; 
print(Pool(1).apply_async("Python".lower).get(3))'; echo $?
python
/home/pablogsal/github/cpython/Lib/multiprocessing/pool.py:234: 
ResourceWarning: unclosed running multiprocessing pool 

  _warn(f"unclosed running multiprocessing pool {self!r}",
ResourceWarning: Enable tracemalloc to get the object allocation traceback
0

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[issue35978] test_venv fails in Travis with GCC

[STINNER Victor]

STINNER Victor  added the comment:

Pablo: Can this issue be related bpo-35378?

commit 3766f18c524c57784eea7c0001602017d2122156
Author: Pablo Galindo 
Date:   Mon Feb 11 17:29:00 2019 +

bpo-35378: Fix multiprocessing.Pool references (GH-11627)

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[issue35978] test_venv fails in Travis with GCC

[Karthikeyan Singaravelan]

New submission from Karthikeyan Singaravelan :

I noticed this while checking issue35961. test_venv is always failing on GCC 
which is marked as optional in Travis.

Log : https://travis-ci.org/python/cpython/jobs/492123436#L1909

0:39:35 load avg: 1.00 [390/416] test_venv
test test_venv failed -- Traceback (most recent call last):
  File "/home/travis/build/python/cpython/Lib/test/test_venv.py", line 309, in 
test_multiprocessing
out, err = check_output([envpy, '-c',
  File "/home/travis/build/python/cpython/Lib/test/test_venv.py", line 37, in 
check_output
raise subprocess.CalledProcessError(
subprocess.CalledProcessError: Command '['/tmp/tmpg8ubeyfn/bin/python', '-c', 
'from multiprocessing import Pool; 
print(Pool(1).apply_async("Python".lower).get(3))']' died with 
.

Also GCC test have been timing out for at least past 4 months : 
https://python.zulipchat.com/#narrow/stream/116742-core.2Fhelp/topic/GCC.20build.20in.20Travis.20always.20times.20out

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messages: 335338
nosy: pablogsal, vstinner, xtreak
priority: normal
severity: normal
status: open
title: test_venv fails in Travis with GCC
type: behavior
versions: Python 3.8

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