subscope lists + dry run + exit code #minor

[nmichlo]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 72.27723% with 28 lines in your changes missing coverage. Please review.

Project coverage is 84.99%. Comparing base (9ea2015) to head (d47140b).
Report is 2 commits behind head on main.

Files	Patch %	Lines
pydependence/_cli.py	75.86%	21 Missing ⚠️
pydependence/__main__.py	46.15%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
+ Coverage   83.44%   84.99%   +1.55%     
==========================================
  Files          12       12              
  Lines        1365     1453      +88     
==========================================
+ Hits         1139     1235      +96     
+ Misses        226      218       -8     

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