tox：如何指定python micro版本

Question

In the example below, the python version is 2.7.6.

• Why is it 2.7.6, and not the latest 2.7.15?
• How do I specify 2.7.15?

Set up

$ tox --version
2.7.0 imported from /home/obk/anaconda3/lib/python3.6/site-packages/tox/__init__.py

$ ls
tox.ini

$ cat tox.ini
[tox]
envlist = py27
skipsdist = True

[testenv]
commands = python -V

Running it:

$ tox -r
py27 recreate: /home/obk/repos/test/.tox/py27
py27 installed:
py27 runtests: PYTHONHASHSEED='4191112007'
py27 runtests: commands[0] | python -V
Python 2.7.6
___________________________________ summary ___________________________________________
  py27: commands succeeded
  congratulations :)

The reason why I want the latest 2.7.15 is because my project has a dependency ( my_foo -> nbconvert -> tornado ) that is now using ssl.create_default_context which was added in 2.7.9 .

Answer 1

Why is it 2.7.6, and not the latest 2.7.15?

Because the version of Python 2.7 on your computer is 2.7.6.

How do I specify 2.7.15?

Specify basepython = /path/to/python2.7.15 under [testenv] , where /path/to/python2.7.15 is a path to a local copy of exactly version 2.7.15.