Dependencies: Stop exporting requirements.txt files

[amotl]

Distribute different Poetry dependency groups to different requirements.txt files for improved sanity.

Completely get rid of requirements.txt files at all.

Reference: #790 (comment)

[codecov]

Codecov Report

Base: 90.54% // Head: 90.79% // Increases project coverage by +0.25% 🎉

Coverage data is based on head (d96e2eb) compared to base (646709c).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #794      +/-   ##
==========================================
+ Coverage   90.54%   90.79%   +0.25%     
==========================================
  Files          90       90              
  Lines        6304     6304              
  Branches      619      619              
==========================================
+ Hits         5708     5724      +16     
+ Misses        453      440      -13     
+ Partials      143      140       -3     

Flag	Coverage Δ
unittests	90.79% <ø> (+0.25%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
wetterdienst/ui/explorer/app.py	87.56% <0.00%> (+6.48%)	⬆️
wetterdienst/ui/explorer/library.py	100.00% <0.00%> (+30.76%)	⬆️

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[amotl]

Dear Benjamin,

at #790 (comment), you said:

I just checked the details again and Github seems to support pyproject.toml now.

I think it would still be worth to keep those requirements{-dev}.txt files, in order to support people from the community who are not able to use Poetry, for whatever reasons. What do you think?

With kind regards,
Andreas.

[gutzbenj]

Dear @amotl ,

honestly I like the pyproject.toml format much more and one should still be able to install it with pip as documented here [1]. But if you believe we should keep it, then that's the way to go!

[1] https://pip.pypa.io/en/stable/reference/build-system/pyproject-toml/

[amotl]

You are right, since setuptools now also understands pyproject.toml, even in editable mode, I think it is safe to completely remove all sorts of requirements{-*}.txt files, in order to avoid confusion and reduce maintenance.