THRIFT-1107. py: improvement for compiler-generated python for 'None' object comparisons

This patch switches from 'x != None' to 'x is not None' for a small performance boost.

Patch: Will Pierce

git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1084661 13f79535-47bb-0310-9956-ffa450edef68
1 file changed