datetime_strptime is 'NoneType' when restart cpython

Bug report

Bug description:

When executing the following code, it will appear TypeError: 'NoneType' object is not callable

#include "Python.h"
#include <iostream>

void py_test() {
    Py_Initialize();
    auto pName = PyUnicode_DecodeFSDefault("datetime");
    auto pModule = PyImport_Import(pName);
    auto datetime = PyObject_GetAttrString(pModule, "datetime");
    auto strptime = PyObject_GetAttrString(datetime, "strptime");
    auto args = PyTuple_New(2);
    PyTuple_SetItem(args, 0, PyUnicode_FromString("2000-01"));
    PyTuple_SetItem(args, 1, PyUnicode_FromString("%Y-%m"));
    auto res = PyObject_CallObject(strptime, args);
    PyObject_Print(res, stdout, 0);
    Py_Finalize();
}

int main() {
    py_test();
    std::cout << "========" << std::endl;
    py_test();
    return 0;
}

CPython versions tested on:

3.11

Operating systems tested on:

macOS

Linked PRs

[3.11] gh-117914: fix datetime_strptime when restart cpython #117915

pythongh-117914: fix datetime_strptime when restart cpython

Is it Python 3.11 only issue? Is it reproduced in 3.12 or in the main branch?

Is it Python 3.11 only issue? Is it reproduced in 3.12 or in the main branch?

Python 3.12 and main branch seems to be worse, it crashes on import after restart.

#include "Python.h"
#include <iostream>

void py_test() {
  Py_Initialize();
  auto pName = PyUnicode_DecodeFSDefault("datetime");
  auto pModule = PyImport_Import(pName);
  Py_Finalize();
}

int main() {
  py_test();
  std::cout << "========" << std::endl;
  py_test();
  return 0;
}

========
a.out(39618,0x7ff8589827c0) malloc: *** error for object 0x10bffedc0: pointer being freed was not allocated
a.out(39618,0x7ff8589827c0) malloc: *** set a breakpoint in malloc_error_break to debug
[1]    39618 abort      ./a.out

If the bug is not 3.11 specific, the PR should be created for the main branch.

This appears to be a duplicate of gh-71587. If I'm mistaken, please re-open.

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datetime_strptime is 'NoneType' when restart cpython #117914

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datetime_strptime is 'NoneType' when restart cpython #117914

Description

Bug report

Bug description:

CPython versions tested on:

Operating systems tested on:

Linked PRs

Activity

serhiy-storchaka commented on Apr 16, 2024

marin-man commented on Apr 16, 2024

serhiy-storchaka commented on Apr 16, 2024

ericsnowcurrently commented on Jun 12, 2024

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