how to remove *.pyc files created by pytest

Question

I just started using pytest with pytest-xdist, to execute tests on remote hosts.

the remote host (windows) are using the socketserver.py module found on https://pytest.org/latest/xdist.html

my problem is that it seems like each time I execute a test, the socketserver will create a new pyexecnetcache directory inside the previous pyexecnetcache directory and fail with the following error message:

=================================== ERRORS ====================================
_______________________ ERROR collecting test_sample.py _______________________
import file mismatch:
imported module 'test_sample' has this __file__ attribute:
  C:\pyexecnetcache\test_sample.py
which is not the same as the test file we want to collect:
  C:\pyexecnetcache\pyexecnetcache\test_sample.py
HINT: remove __pycache__ / .pyc files and/or use a unique basename for your test
 file modules

the test is executed by:

py.test -d --tx socket=myhost:8888 --rsyncdir test_sample.py test_sample.py

How do I remove the cache after each run?

I have tried added the following to the socketserver.py:

import sys
sys.dont_write_bytecode = True

Hmm, try to run Python with `-B`. Source: [https://bitbucket.org/pytest-dev/pytest/issues/200/disable-the-creation-of-the-__pycache__#comment-2114656](https://bitbucket.org/pytest-dev/pytest/issues/200/disable-the-creation-of-the-__pycache__#comment-2114656) — Darius, May 18 '16 at 14:32

score 0 · Answer 1 · answered May 20 '16 at 17:01

0

Try to export PYTHONFLAGS variable:

export PYTHONFLAGS=-B

answered May 20 '16 at 17:01

Ederson Badeca

363
1
9

I cannot do that on windows? However tried with my linux client, without any luck. – Bjarne Michelsen May 24 '16 at 06:41

score 0 · Accepted Answer · answered May 24 '16 at 14:44

@bjarneMichelsen

well, there is another options to try... in windows you can try to set this direcly on source like..

 import sys

 sys.dont_write_bytecode = True

now, for the -B option.. you can try to export the variable PYTHONDONTWRITEBYTECODE=1 instead set a python flag

it is describe on [python docs]( https://docs.python.org/2/using/cmdline.html#envvar-PYTHONDONTWRITEBYTECODE)

how to remove *.pyc files created by pytest

2 Answers2