Change to Python 3 syntax#1

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ahijevyc wants to merge 5 commits intorsobash:masterfrom

ahijevyc:python2to3

Commits on Apr 10, 2019

Ran 2to3
ahijevyc
committed

Commits on Apr 11, 2019

added parentheses to print statement
ahijevyc
committed

Commits on Apr 12, 2019

Commits on Jul 23, 2019

binary flag for pickle dump
ahijevyc
committed