Addressing PR comments

[hallvictoria]

• renamed base tests
• removed unused imports
• updated version and python version classifiers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.36%. Comparing base (a9ecfc0) to head (d646017).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev       #6      +/-   ##
==========================================
- Coverage   86.39%   86.36%   -0.03%     
==========================================
  Files          28       28              
  Lines         992      990       -2     
  Branches      119      119              
==========================================
- Hits          857      855       -2     
  Misses        121      121              
  Partials       14       14              

Flag	Coverage Δ
unittests	86.36% <ø> (-0.03%)	⬇️

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