Can you clarify?  My reading of PEP8 has it that binary operators should be surrounded by whitespace, to whit:
"Other Recommendations

Always surround these binary operators with a single space on either side: assignment (=), augmented assignment (+=, -= etc.), comparisons (==, <, >, !=, <>, <=, >=, in, not in, is, is not), Booleans (and, or, not)."