New submission from Ofek Lev:
The following example shows that we are indeed changing PATH, but the
subprocess does not acknowledge it in Windows 7 x64. Also note this works in
Linux (Ubuntu 16.04).
-----
import os
import subprocess
from contextlib import contextmanager
from tempfile import TemporaryDirectory
def get_python_path():
return subprocess.check_output(
['python', '-c', 'import sys;print(sys.executable)']
).decode().strip()
@contextmanager
def temp_chdir(cwd=None):
with TemporaryDirectory() as d:
origin = cwd or os.getcwd()
os.chdir(d)
try:
yield d
finally:
os.chdir(origin)
def create_venv(d, pypath=None):
command = ['virtualenv', d]
if pypath:
command.extend(['-p', pypath])
subprocess.call(command)
@contextmanager
def venv(d):
if os.path.exists(os.path.join(d, 'bin')): # no cov
venv_exe_dir = os.path.join(d, 'bin')
elif os.path.exists(os.path.join(d, 'Scripts')):
venv_exe_dir = os.path.join(d, 'Scripts')
else:
raise OSError('Unable to locate executables directory.')
old_path = os.environ['PATH']
os.environ['PATH'] = '{}{}{}'.format(venv_exe_dir, os.pathsep, old_path)
yield
os.environ['PATH'] = old_path
def test_venv():
with temp_chdir() as d:
d = os.path.join(d, 'test_env')
create_venv(d)
global_python = get_python_path()
print('PATH', os.environ['PATH'][:140])
with venv(d):
print('PATH', os.environ['PATH'][:140])
venv_python = get_python_path()
assert global_python != venv_python
assert global_python == get_python_path()
----------
components: Windows
messages: 296986
nosy: Ofekmeister, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Spawned subprocesses don't respect environment
type: behavior
versions: Python 3.6
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue30783>
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