Source code: Lib/dummy_threading.py
This module provides a duplicate interface to the threading module. It is meant to be imported when the _thread module is not provided on a platform.
Suggested usage is:
try:
import threading
except ImportError:
import dummy_threading as threading
Be careful to not use this module where deadlock might occur from a thread being created that blocks waiting for another thread to be created. This often occurs with blocking I/O.