New submission from Alexander Belopolsky <[email protected]>:
Consider the following code:
import sys
def trace(frame, event, arg):
pass
def f():
f()
sys.settrace(trace)
print(sys.gettrace())
try:
f()
except RuntimeError:
pass
print(sys.gettrace())
When I run it, I get
<function trace at 0x108865158>
None
Apparently, the infinite recursion somehow resets the trace function. This
interferes with the coverage tools.
----------
messages: 319409
nosy: belopolsky
priority: normal
severity: normal
stage: needs patch
status: open
title: Caught infinite recursion resets the trace function
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8
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Python tracker <[email protected]>
<https://bugs.python.org/issue33849>
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