Message 251809 - Python tracker

Ooops, copy/paste failure. The right diff is:

Changeset 294f8aeb4d4b: "Implemented PEP 405 (Python virtual environments)."

-        tracer = trace.Trace(ignoredirs=[sys.prefix, sys.exec_prefix,
+        tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,
                                          tempfile.gettempdir()],
                              trace=False, count=True)