The patch is unacceptable in its current form:
- it should be provided as a patch to threading.py, not as a separate module
- it should have a name that follows "the convention", which seems to be that 
  it should have "reader" and "writer" in its name (or "rw"). See how C# and
  Java do it (and other libraries you can find that provide such a mechanism)
- it needs documentation
- it needs tests.