[PATCH v11] Add pretty printers for the NPTL lock types

[Joseph Myers]

After a build and test run I see files scripts/test_printers_common.pyc 
and scripts/test_printers_exceptions.pyc created in the source directory.  
We'd like to be able to build with read-only source directories, could the 
tests be fixed not to create .pyc files (e.g. use python -B) or to create 
them in the build directory?

-- 
Joseph S. Myers
joseph@codesourcery.com