New issue 334: tox always uses python 2.7 to build envs. can't work on projects
with python3 code in setup.py
https://bitbucket.org/hpk42/tox/issues/334/tox-always-uses-python-27-to-build-envs
cpdean:
I've added the following to my setup.py:
```
import sys
with open("what.version.is.this.txt", "w") as f:
f.write(str(sys.version_info) + "\n")
```
my tox file looks like this:
```
[tox]
basepython=python3
envlist = py35
[testenv]
basepython=python3
deps =
[testenv:py35]
basepython=python3
skip_install = true
skipsdist = true
deps =
mypy-lang
commands = mypy --py2 zulip
```
and the following gets written out:
```
$ cat what.version.is.this.txt
sys.version_info(major=2, minor=7, micro=10, releaselevel='final', serial=0)
```
This is a problem because the project I'm trying to add tox to uses a module
found only in python3.
```
tox
GLOB sdist-make: /Users/cdean/dev/foss/python/zulip/api/setup.py
ERROR: invocation failed (exit code 1), logfile:
/Users/cdean/dev/foss/python/zulip/api/.tox/log/tox-0.log
ERROR: actionid: tox
msg: packaging
cmdargs: ['/usr/local/opt/python/bin/python2.7',
local('/Users/cdean/dev/foss/python/zulip/api/setup.py'), 'sdist',
'--formats=zip', '--dist-dir',
local('/Users/cdean/dev/foss/python/zulip/api/.tox/dist')]
env: None
Traceback (most recent call last):
File "setup.py", line 9, in <module>
from typing import Any, Generator, List, Tuple
ImportError: No module named typing
ERROR: FAIL could not package project - v =
InvocationError('/usr/local/opt/python/bin/python2.7
/Users/cdean/dev/foss/python/zulip/api/setup.py sdist --formats=zip --dist-dir
/Users/cdean/dev/foss/python/zulip/api/.tox/dist (see
/Users/cdean/dev/foss/python/zulip/api/.tox/log/tox-0.log)', 1)
```
What am I doing wrong here?
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