Replace usage of deprecated inspect.getargspec

[aronbierbaum]

Use getfullargspec for Python 3.x to support Python 3.11 where getargspec was removed complete.

[dee-me-tree-or-love]

Hey @aronbierbaum! Thanks a lot for opening this PR 👍 I will check it out in detail in the coming days, but wanted to ask if you could provide a small context description in the PR description in the meantime? :) I see that it removes the getargspec which was indeed deprecated in Python 3, but is still present in Python 2. I would like to double-check whether this will be a safe backward-compatible change before merging. What kind of problem specifically have you experienced with using the current version? :)

[dee-me-tree-or-love]

Hey @aronbierbaum, thank you for adding the description and making it backwards compatible.
I think it looks great and I'll be happy to merge it.
With #439, I might prefer to try fixing this first, but in any case, I will make sure to get your PR in.

[dee-me-tree-or-love]

👍

[dee-me-tree-or-love]

Hey @aronbierbaum, I have fixed the CI issues of #439 in #444. I think it should now check the things properly if you could update your branch with master. I will then give a final look and will be happy to merge this 👍

[aronbierbaum]

@dee-me-tree-or-love I have updated to be based off the latest master.

[dee-me-tree-or-love]

Hi @aronbierbaum, thanks a lot for the update! This looks great, thanks a lot for picking this up :) Glad to merge it.