bot: replaced retry function with Tenacity

[seb-sojka]

Remove retry function and related RunException from utils.py for bot and replaces it with Tenacity retry in taskcluster.py and uploader.py
Fixes #110

[marco-c]

There are some linting failures (I suggest using pre-commit for that), and some test failures (you can run tests by doing cd bot and then python -m pytest -s -v tests/).

[marco-c]

@seb-sojka do you still want to work on this?

[seb-sojka]

Hello,
I have run into an issue with the tester when changing to Tenacity for retries for perform_download function. It does not increase the call count but I have used print to see the perform_download occur 5 times.

[marco-c]

I have run into an issue with the tester when changing to Tenacity for retries for perform_download function. It does not increase the call count but I have used print to see the perform_download occur 5 times.

Probably tenacity is not using time.sleep. You can change the test to stop mocking it, and instead count the number of times the responses URL is hit (see https://github.com/getsentry/responses, something like assert len(responses.calls) == 5).

[seb-sojka]

The error with linit and taskcluster_yml. I am unsure what the solution for this. I do not have this error locally when I run the pre-commit.

[marco-c]

Looks good, just one last thing to fix!

[marco-c]

Thanks!

[marco-c]

If you want, here are some similar issues in this and other repos:
#392
mozilla/bugbug#1234