feat(templates): Drop Python 3.7 support in cookiecutter templates

[visch]

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📚 Documentation preview 📚: https://meltano-sdk--2018.org.readthedocs.build/en/2018/

[edgarrmondragon]

@visch I'm not against, but why? Is it blocking something? 😅

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I ask because I've been reluctant to backport #1837 from the v1 branch to main because 3.7 is still ~1/3 of downloads:

[codecov]

Codecov Report

Merging #2018 (1379809) into main (672e38d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2018   +/-   ##
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  Coverage   86.83%   86.83%           
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  Files          58       58           
  Lines        4885     4885           
  Branches      777      777           
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  Hits         4242     4242           
  Misses        456      456           
  Partials      187      187           

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[visch]

@visch I'm not against, but why? Is it blocking something? 😅

I ask because I've been reluctant to backport #1837 from the v1 branch to main because 3.7 is still ~1/3 of downloads:

Not a huge deal for me I just hit that a down stream dependency i wanted to use for my tap required python 3.8 or higher (latest version of fsspec atleast). Since I had to update the cookie cutter on my side I figured it'd help some others down the road!

[visch]

@visch I'm not against, but why? Is it blocking something? 😅

I ask because I've been reluctant to backport #1837 from the v1 branch to main because 3.7 is still ~1/3 of downloads:

Just remembered one other thing, I didn't touch the main pyproject toml file exactly for the reason you mentioned :) so we don't break anyone here but anyone new has a later version of Python required

[edgarrmondragon]

I just hit that a down stream dependency i wanted to use for my tap required python 3.8 or higher (latest version of fsspec atleast)

Yeah, I've hit those too and Poetry doesn't have good hints about what to do in those cases because it tries to add the latest version by default. I've found that adding the dependency manually and pointing to a version right before 3.7 support was dropped, works fine.

For the case of fsspec that'd be 2023.3.0.

That said, it probably doesn't hurt to start expecting new packages built with the templates to require Python >= 3.8.