Recursive call causes core dump in assertRaises #87352

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1. CharlesFengY commented on Feb 10, 2021

   

   CharlesFengYmannequin

   on Feb 10, 2021

   MannequinAuthor

   More actions

   In following teststr.py, class MyString is nestedly instanced in method __getattr__(). This script will lead to a "core dump" in Python interpreter. My Python version is 3.9.1 and my operating system is Ubuntu 16.04.

   teststr.py
   +++++++++++++++++++++++++++++++++++++++++++
   class StrError(str):
   pass

   class MyString:
   
       def __init__(self, istr):
           self.__mystr__ = istr
   
       def __getattr__(self, content):
           with self:
               return MyString(getattr(self.__mystr__, content))
   
       def __setattr__(self, content, sstr):
           setattr(self.__mystr__, content)
   
       def __enter__(self):
           return self
   
       def __exit__(self, exc_type, exc_val, exc_tb):
            raise StrError(self.__mystr__) 
            return True
   
   MyString("hello")
   +++++++++++++++++++++++++++++++++++++++++
2. CharlesFengY

   added

   3.9 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on Feb 10, 2021
3. terryjreedy

   closed this as completedon Feb 13, 2021
4. terryjreedy

   closed this as completedon Feb 13, 2021
5. ezio-melotti

   transferred this issue fromon Apr 10, 2022