https://docs.python.org › 3 › c-api › exceptions.html

Use PyErr_Fetch() to save the current error indicator. void PyErr_NormalizeException ( PyObject * * exc , PyObject * * val , PyObject * * tb ) ¶ Part of the Stable ABI .

https://stackoverflow.com › questions › 52468416

At either end, we can use PyErr_Fetch and PyErr_Restore to prevent these issues. Put around a call to an ambiguous function, they allow reliably determining whether it succeeded; put around Py_DECREF , they prevent the error indicator from being set during the execution of whatever susceptible code in the first place.

https://stackoverflow.com › questions › 1001216

With PyErr_Fetch() I can get the type object of the exception and the value. For the above example, the value is a tuple: (2, 'No such file or directory', '/snafu/fnord') Is there an easy way from the information I get from PyErr_Fetch() to the string the Python interpreter shows?

https://weshallneversurrender.com › PyErr-Fetch

In the simplest terms, PyErr_Fetch is a function in Python’s C API that retrieves the current active exception. Think about it as a detective fetching clues about what went wrong. It captures the type, value, and traceback of the exception.

https://python.readthedocs.io › en › stable › c-api › exceptions.html

This function is normally only used by code that needs to save and restore the error indicator temporarily. Use PyErr_Fetch() to save the current error indicator.

https://docs.python.org › 3 › genindex-P.html

PyErr_DisplayException (C function) PyErr_ExceptionMatches (C function), PyErr_Fetch (C function), PyErr_Format (C function) PyErr_FormatV (C function) PyErr_GetExcInfo (C function) PyErr_GetHandledException (C function) PyErr_GetRaisedException (C function) PyErr_GivenExceptionMatches (C function) PyErr_NewException (C function)

https://sceweb.sce.uhcl.edu › helm › WEBPAGE-Python › documentation › python_tutorial › api › ...

void PyErr_Fetch(PyObject **ptype, PyObject **pvalue, PyObject **ptraceback) Retrieve the error indicator into three variables whose addresses are passed. If the error indicator is not set, set all three variables to NULL .

https://docs.python.org › 3 › extending › newtypes.html

This can be done using the PyErr_Fetch() and PyErr_Restore() functions:

https://awasu.com › weblog › embedding-python › handling-errors

We do this by calling PyErr_Fetch(), which returns us the normal Python error variables (sys.exc_type, sys.exc_value and sys.exc_traceback).

https://python.readthedocs.io › en › v2.7.2 › c-api › exceptions.html

void PyErr_Fetch(PyObject **ptype, PyObject **pvalue, PyObject **ptraceback)¶ Retrieve the error indicator into three variables whose addresses are passed. If the error indicator is not set, set all three variables to NULL. If it is set, it will be cleared and you own a reference to each object retrieved.