Fix lint errors

[mellis13]

This PR fixes lint issues so that other large PRs are less difficult to review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.62%. Comparing base (4937fbd) to head (ede6e59).
Report is 16 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop     #522       +/-   ##
============================================
- Coverage    95.92%   57.62%   -38.31%     
============================================
  Files           10      147      +137     
  Lines          884    11708    +10824     
  Branches         0     1121     +1121     
============================================
+ Hits           848     6747     +5899     
- Misses          36     4810     +4774     
- Partials         0      151      +151     

Files with missing lines	Coverage Δ
src/python/module/smartredis/client.py	97.55% <100.00%> (ø)
src/python/module/smartredis/configoptions.py	92.68% <ø> (ø)
src/python/module/smartredis/dataset_utils.py	96.55% <ø> (ø)
src/python/module/smartredis/util.py	93.10% <100.00%> (ø)

... and 137 files with indirect coverage changes

[al-rigazzi]

LGTM, isolating this in its own PR was definitely a good idea