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Make extract_stack resilient to lacking frames. #563

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Oct 7, 2023
Merged

Make extract_stack resilient to lacking frames. #563

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7 changes: 6 additions & 1 deletion uvloop/cbhandles.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,12 @@ cdef extract_stack():
"""Replacement for traceback.extract_stack() that only does the
necessary work for asyncio debug mode.
"""
f = sys_getframe()
try:
f = sys_getframe()
# sys._getframe() might raise ValueError if being called without a frame, e.g.
# from Cython or similar C extensions.
except ValueError:
return None
if f is None:
return

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