cc16bd3d53
cpython actually makes sure the newly chained exception doesn't create a cycle (even indirectly); see _PyErr_SetObject use of "Floyd's cycle detection algo". We'll go for the simpler solution of just checking one level deep until it's clear we need to do more. Closes: #7414
75 lines
1.2 KiB
Python
75 lines
1.2 KiB
Python
try:
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Exception().__cause__
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except AttributeError:
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print("SKIP")
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raise SystemExit
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try:
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import traceback
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except:
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print("SKIP")
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raise SystemExit
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def print_exc_info(e, chain=True):
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print("-" * 72)
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traceback.print_exception(None, e, e.__traceback__, chain=chain)
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print("-" * 72)
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print()
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try:
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try:
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1 / 0
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except Exception as inner:
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raise RuntimeError() from inner
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except Exception as e:
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print_exc_info(e, chain=False)
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print_exc_info(e)
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print()
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try:
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try:
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1 / 0
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except Exception as inner:
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raise RuntimeError() from OSError()
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except Exception as e:
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print_exc_info(e)
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print()
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try:
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try:
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1 / 0
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except Exception as inner:
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raise RuntimeError()
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except Exception as e:
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print_exc_info(e)
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print()
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try:
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try:
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1 / 0
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except Exception as inner:
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raise RuntimeError() from None
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except Exception as e:
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print_exc_info(e)
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try:
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try:
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raise RuntimeError()
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except Exception as inner:
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1 / 0
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except Exception as e:
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print_exc_info(e)
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try:
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try:
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1 / 0
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except Exception as inner:
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raise inner
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except Exception as e:
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print_exc_info(e, chain=False)
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print_exc_info(e)
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print()
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