lint & format weights/*.py part 1

[jGaboardi]

This PR:

• formats and lints weights/*.py – part 1 of $n$

[codecov]

Codecov Report

Merging #648 (fdcedde) into main (c9c8ab4) will increase coverage by 0.0%.
The diff coverage is 100.0%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #648   +/-   ##
=====================================
  Coverage   84.7%   84.7%           
=====================================
  Files        139     139           
  Lines      14885   14882    -3     
=====================================
+ Hits       12606   12607    +1     
+ Misses      2279    2275    -4     

Files	Coverage Δ
libpysal/weights/_contW_lists.py	97.3% <100.0%> (+5.1%)	⬆️
libpysal/weights/adjtools.py	91.2% <100.0%> (ø)