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[3.12] gh-112826: Fix the threading Module When _thread is Missing _is_main_interpreter() (#112850)

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Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
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Eric Snow 2023-12-07 13:15:20 -07:00 • committed by GitHub
parent 34e9e20cf2
commit c0fc88fa2f
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15
Lib/threading.py
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@ -37,7 +37,20 @@ _daemon_threads_allowed = _thread.daemon_threads_allowed
_allocate_lock = _thread.allocate_lock
_set_sentinel = _thread._set_sentinel
get_ident = _thread.get_ident
_is_main_interpreter = _thread._is_main_interpreter
try:
_is_main_interpreter = _thread._is_main_interpreter
except AttributeError:
# See https://github.com/python/cpython/issues/112826.
# We can pretend a subinterpreter is the main interpreter for the
# sake of _shutdown(), since that only means we do not wait for the
# subinterpreter's threads to finish. Instead, they will be stopped
# later by the mechanism we use for daemon threads. The likelihood
# of this case is small because rarely will the _thread module be
# replaced by a module without _is_main_interpreter().
# Furthermore, this is all irrelevant in applications
# that do not use subinterpreters.
def _is_main_interpreter():
return True
try:
get_native_id = _thread.get_native_id
_HAVE_THREAD_NATIVE_ID = True