fix: make check_date_operators work with dateutil < 2.8.1

[snosratiershad]

Description

For better discussion about #266

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.

• Unit tests
• Spec Tests
• Integration tests / Manual Tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[sighphyre]

Oh! That's a much nicer approach than just forcing the version. I think this looks good in principle.

The linter is definitely going to complain about the bare except here. I think that should be fixable, I think it's okay if you disable linting on that line

How do you feel about pulling that try catch up to a module level call rather than buried in the method itself?

[snosratiershad]

OK @sighphyre, if you approve this approach I'm going to fix issues with the linter, etc.
Actually, I don't feel good about the module-level idea. It can differ in case, The main reason that I used this approach is that I proved the case of raising ValueError on the method is the same with ParserError and I'm not sure about any other method and usage.

[sighphyre]

@snosratiershad

Actually, I don't feel good about the module-level idea. It can differ in case, The main reason that I used this approach is that I proved the case of raising ValueError on the method is the same with ParserError and I'm not sure about any other method and usage.

Okay, that's actually an entirely fair comment, good point.

Yeah, I'm happy to merge this if the lint passes!

[sighphyre]

LGTM!

[sighphyre]

@snosratiershad I see the commit! Looks good to me, are you okay for me to merge it?

[snosratiershad]

@sighphyre yes, looks ready for me.