Fix landscape issues

[tomschr]

• Fixed some Landscape.io code smell issues
• Added pylint section, Fixed pylint unused-import (W0611)
• Refactored show_langlist()
• [ ]  General Comment
• <img border=0 src='https://avatars.githubusercontent.com/u/10010231?v=3' height=16 width=16'> Repository health increased by 6% when pulling 9e6c161 on feature/fix-landscape-issues into cbdbafe on develop.
• 2 new problems were found (including 0 errors and 1 code smell).
• 22 problems were fixed (including 0 errors and 21 code smells).
• <img border=0 src='https://avatars.githubusercontent.com/u/8287131?v=3' height=16 width=16'> +1

  

[landscape-bot]

Repository health increased by 6% when pulling 9e6c161 on feature/fix-landscape-issues into cbdbafe on develop.

• 2 new problems were found (including 0 errors and 1 code smell).
• 22 problems were fixed (including 0 errors and 21 code smells).

[mschnitzer]

+1