3.20.1 python 3.11 compatibility

recipe/meta.yaml

@@ -7,9 +7,12 @@ package:
 source:
   url: https://github.com/protocolbuffers/protobuf/archive/v{{ version }}/protobuf-v{{ version }}.tar.gz
   sha256: 8b28fdd45bab62d15db232ec404248901842e5340299a57765e48abe8a80d930
+  patches:  # [py==311]
+    # see https://github.com/protocolbuffers/protobuf/pull/10403
+    - patches/0001-fix-build-with-python-311.patch  # [py==311]
 
 build:
-  number: 0
+  number: 1
   skip: True  # [win32]
   missing_dso_whitelist:  # [s390x]
     - $RPATH/ld64.so.1    # [s390x]
@@ -18,6 +21,8 @@ requirements:
   build:
     - {{ compiler('c') }}
     - {{ compiler('cxx') }}
+    - patch     # [(not win) and (py==311)]
+    - m2-patch  # [win and (py==311)]
   host:
     - python
     - pip

recipe/patches/0001-fix-build-with-python-311.patch

@@ -0,0 +1,131 @@
+Patch adapted from: https://github.com/protocolbuffers/protobuf/pull/10403
+
+From da973aff2adab60a9e516d3202c111dbdde1a50f Mon Sep 17 00:00:00 2001
+From: Alexander Shadchin <alexandr.shadchin@gmail.com>
+Date: Sun, 14 Aug 2022 21:13:49 +0300
+Subject: [PATCH] Fix build with Python 3.11
+
+The PyFrameObject structure members have been removed from the public C API.
+
+diff --git a/python/google/protobuf/pyext/descriptor.cc b/python/google/protobuf/pyext/descriptor.cc
+index 162531226..e93ec4809 100644
+--- a/python/google/protobuf/pyext/descriptor.cc
++++ b/python/google/protobuf/pyext/descriptor.cc
+@@ -58,6 +58,37 @@
+               : 0)                                               \
+        : PyBytes_AsStringAndSize(ob, (charpp), (sizep)))
+
++#if PY_VERSION_HEX < 0x030900B1 && !defined(PYPY_VERSION)
++static PyCodeObject* PyFrame_GetCode(PyFrameObject *frame)
++{
++    Py_INCREF(frame->f_code);
++    return frame->f_code;
++}
++
++static PyFrameObject* PyFrame_GetBack(PyFrameObject *frame)
++{
++    Py_XINCREF(frame->f_back);
++    return frame->f_back;
++}
++#endif
++
++#if PY_VERSION_HEX < 0x030B00A7 && !defined(PYPY_VERSION)
++static PyObject* PyFrame_GetLocals(PyFrameObject *frame)
++{
++    if (PyFrame_FastToLocalsWithError(frame) < 0) {
++        return NULL;
++    }
++    Py_INCREF(frame->f_locals);
++    return frame->f_locals;
++}
++
++static PyObject* PyFrame_GetGlobals(PyFrameObject *frame)
++{
++    Py_INCREF(frame->f_globals);
++    return frame->f_globals;
++}
++#endif
++
+ namespace google {
+ namespace protobuf {
+ namespace python {
+@@ -96,48 +127,66 @@ bool _CalledFromGeneratedFile(int stacklevel) {
+   // This check is not critical and is somewhat difficult to implement correctly
+   // in PyPy.
+   PyFrameObject* frame = PyEval_GetFrame();
++  PyCodeObject* frame_code = nullptr;
++  PyObject* frame_globals = nullptr;
++  PyObject* frame_locals = nullptr;
++  bool result = false;
++
+   if (frame == nullptr) {
+-    return false;
++    goto exit;
+   }
++  Py_INCREF(frame);
+   while (stacklevel-- > 0) {
+-    frame = frame->f_back;
++    PyFrameObject* next_frame = PyFrame_GetBack(frame);
++    Py_DECREF(frame);
++    frame = next_frame;
+     if (frame == nullptr) {
+-      return false;
++      goto exit;
+     }
+   }
+
+-  if (frame->f_code->co_filename == nullptr) {
+-    return false;
++  frame_code = PyFrame_GetCode(frame);
++  if (frame_code->co_filename == nullptr) {
++    goto exit;
+   }
+   char* filename;
+   Py_ssize_t filename_size;
+-  if (PyString_AsStringAndSize(frame->f_code->co_filename,
++  if (PyString_AsStringAndSize(frame_code->co_filename,
+                                &filename, &filename_size) < 0) {
+     // filename is not a string.
+     PyErr_Clear();
+-    return false;
++    goto exit;
+   }
+   if ((filename_size < 3) ||
+       (strcmp(&filename[filename_size - 3], ".py") != 0)) {
+     // Cython's stack does not have .py file name and is not at global module
+     // scope.
+-    return true;
++    result = true;
++    goto exit;
+   }
+   if (filename_size < 7) {
+     // filename is too short.
+-    return false;
++    goto exit;
+   }
+   if (strcmp(&filename[filename_size - 7], "_pb2.py") != 0) {
+     // Filename is not ending with _pb2.
+-    return false;
++    goto exit;
+   }
+
+-  if (frame->f_globals != frame->f_locals) {
++  frame_globals = PyFrame_GetGlobals(frame);
++  frame_locals = PyFrame_GetLocals(frame);
++  if (frame_globals != frame_locals) {
+     // Not at global module scope
+-    return false;
++    goto exit;
+   }
+ #endif
+-  return true;
++  result = true;
++exit:
++  Py_XDECREF(frame_globals);
++  Py_XDECREF(frame_locals);
++  Py_XDECREF(frame_code);
++  Py_XDECREF(frame);
++  return result;
+ }
+
+ // If the calling code is not a _pb2.py file, raise AttributeError.