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devdanzin/object_print_recursion.md

Created March 18, 2026 10:07
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object.c: PyObject_Print missing _Py_LeaveRecursiveCall
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object_print_recursion.md

object.c: PyObject_Print missing _Py_LeaveRecursiveCall

Summary

PyObject_Print calls _Py_EnterRecursiveCall at line 639 but never calls _Py_LeaveRecursiveCall on the normal return path (line 691). Every successful call permanently increments the recursion depth counter. C API only — not directly callable from Python.

Fix

Add _Py_LeaveRecursiveCall(); before return ret; at line 691.

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