tools: Ensure compat for collect_env with python 3.5
Users were reporting errors of not being able to use collect_env with
older versions of python. This adds a test to ensure that we maintain
compat for this script with older versions of python
Signed-off-by: Eli Uriegas <eliuriegasfb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/78946
Approved by: https://github.com/janeyx99
