cpython/Doc/library/_dummy_thread.rst

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:mod:`_dummy_thread` --- Drop-in replacement for the :mod:`_thread` module
==========================================================================
.. module:: _dummy_thread
:synopsis: Drop-in replacement for the _thread module.
**Source code:** :source:`Lib/_dummy_thread.py`
.. deprecated:: 3.7
Python now always has threading enabled. Please use :mod:`_thread`
(or, better, :mod:`threading`) instead.
--------------
This module provides a duplicate interface to the :mod:`_thread` module.
It was meant to be imported when the :mod:`_thread` module was not provided
on a platform.
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.