This pull request fixes 53 alerts when merging a2839fa50137e62ac3a3fb34ab3999fcce5bda4e into 75cd2421246e4bd0fed65b203d8813a23727c7e0 - view on LGTM.com
fixed alerts:
47 for Unused import
3 for Unused local variable
1 for Unnecessary 'else' clause in loop
1 for Suspicious unused loop iteration variable
1 for Module is imported with 'import' and 'import from'
Clean up imports and remove unused imports