[Python-porting] python-future: scripts generate unwanted output

[Eric Firing]

I have used futurize plus some manual fixup in an ongoing attempt to 
port a package.  Some of it is now working on both Python 2 and 3, but 
although scripts work correctly, they begin by spewing an enormous 
number of lines like:

Detecting hooks ...
Not detected.
Uninstalling hooks ...
Not removing future.types.newobject
Not removing future.types.newdict
Not removing future.types.math
Not removing future.builtins.newnext

...

and/or

Generating grammar tables from /usr/lib/python3.4/lib2to3/Grammar.txt
Generating grammar tables from /usr/lib/python3.4/lib2to3/PatternGrammar.txt
Adding transformation: division
Generating grammar tables from /usr/lib/python3.4/lib2to3/PatternGrammar.txt
Generating grammar tables from /usr/lib/python3.4/lib2to3/PatternGrammar.txt
Adding transformation: print_with_import

Why is this happening, and how can I suppress it?  Is it related to use 
of the logging module?

Eric