Add utility which removes all *.pyc and *.pyo files (used by Windows installer during uninstall).

lib/python/Zope/Startup/decompilezpy.py

+import os
+import sys
+
+def main(dirname):
+    os.path.walk(dirname, rmpycs, None)
+
+def rmpycs(arg, dirname, names):
+    for name in names:
+        path = os.path.join(dirname, name)
+        if ( name.endswith('.pyc') or name.endswith('.pyo') and
+             os.path.isfile(path) ):
+            os.unlink(path)
+
+if __name__ == '__main__':
+    main(sys.argv[1])