Pylint fixes and improvements.
Pylint fixes and improvements.

RGood/praw,darthkedrik/praw,iAmMrinal0/reddit,leviroth/praw,leviroth/praw,praw-dev/praw,iAmMrinal0/reddit,RGood/praw,TacticalGoat/reddit,TacticalGoat/reddit,13steinj/praw,tehp/reddit,voussoir/reddit,nmtake/praw,gschizas/praw,praw-dev/praw,tehp/reddit,tehp/reddit,nmtake/praw,13steinj/praw,gschizas/praw,darthkedrik/praw,voussoir/reddit