.pyc files should not be created in source tree

[msteghofer]

Normally the build system shouldn't modify anything in the source tree. We violate that principle by adding a .pyc file near every .py file. That causes problems with certain SVN operations (e.g. a shoulder should be deleted when doing an svn update, but it can't because the .pyc file counts as local modification). Maybe python provides a way of avoiding the creation of those files or at least to put them in another place (bin folder)?

[msteghofer]

Possible solutions (http://stackoverflow.com/questions/154443/how-to-avoid-pyc-files):

• Set sys.dont_write_bytecode to avoid writing .pyc files at all
• Use pycache to create .pyc files in special folder (Python 3.2)