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 as _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.
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Licensed under the PSF License.
https://docs.python.org/2.7/library/dummy_threading.html