first commit based on psycopg2 2.9 version

psycopg/python.h

@@ -0,0 +1,99 @@
+/* python.h - python version compatibility stuff
+ *
+ * Copyright (C) 2003-2019 Federico Di Gregorio <fog@debian.org>
+ * Copyright (C) 2020-2021 The Psycopg Team
+ *
+ * This file is part of psycopg.
+ *
+ * psycopg2 is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link this program with the OpenSSL library (or with
+ * modified versions of OpenSSL that use the same license as OpenSSL),
+ * and distribute linked combinations including the two.
+ *
+ * You must obey the GNU Lesser General Public License in all respects for
+ * all of the code used other than OpenSSL.
+ *
+ * psycopg2 is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ */
+
+#ifndef PSYCOPG_PYTHON_H
+#define PSYCOPG_PYTHON_H 1
+
+#if PY_VERSION_HEX < 0x03060000
+#error "psycopg requires Python 3.6"
+#endif
+
+#include <structmember.h>
+
+/* Since Py_TYPE() is changed to the inline static function,
+ * Py_TYPE(obj) = new_type must be replaced with Py_SET_TYPE(obj, new_type)
+ * https://docs.python.org/3.10/whatsnew/3.10.html#id2
+ */
+#if PY_VERSION_HEX < 0x030900A4
+  #define Py_SET_TYPE(obj, type) ((Py_TYPE(obj) = (type)), (void)0)
+#endif
+
+/* FORMAT_CODE_PY_SSIZE_T is for Py_ssize_t: */
+#define FORMAT_CODE_PY_SSIZE_T "%" PY_FORMAT_SIZE_T "d"
+
+/* FORMAT_CODE_SIZE_T is for plain size_t, not for Py_ssize_t: */
+#ifdef _MSC_VER
+  /* For MSVC: */
+  #define FORMAT_CODE_SIZE_T "%Iu"
+#else
+  /* C99 standard format code: */
+  #define FORMAT_CODE_SIZE_T "%zu"
+#endif
+
+#define Text_Type PyUnicode_Type
+#define Text_Check(s) PyUnicode_Check(s)
+#define Text_Format(f,a) PyUnicode_Format(f,a)
+#define Text_FromUTF8(s) PyUnicode_FromString(s)
+#define Text_FromUTF8AndSize(s,n) PyUnicode_FromStringAndSize(s,n)
+
+#define PyInt_Type             PyLong_Type
+#define PyInt_Check            PyLong_Check
+#define PyInt_AsLong           PyLong_AsLong
+#define PyInt_FromLong         PyLong_FromLong
+#define PyInt_FromString       PyLong_FromString
+#define PyInt_FromSsize_t      PyLong_FromSsize_t
+#define PyExc_StandardError    PyExc_Exception
+#define PyString_FromFormat    PyUnicode_FromFormat
+#define Py_TPFLAGS_HAVE_ITER   0L
+#define Py_TPFLAGS_HAVE_RICHCOMPARE 0L
+#define Py_TPFLAGS_HAVE_WEAKREFS 0L
+
+#ifndef PyNumber_Int
+#define PyNumber_Int           PyNumber_Long
+#endif
+
+#define Bytes_Type PyBytes_Type
+#define Bytes_Check PyBytes_Check
+#define Bytes_CheckExact PyBytes_CheckExact
+#define Bytes_AS_STRING PyBytes_AS_STRING
+#define Bytes_GET_SIZE PyBytes_GET_SIZE
+#define Bytes_Size PyBytes_Size
+#define Bytes_AsString PyBytes_AsString
+#define Bytes_AsStringAndSize PyBytes_AsStringAndSize
+#define Bytes_FromString PyBytes_FromString
+#define Bytes_FromStringAndSize PyBytes_FromStringAndSize
+#define Bytes_FromFormat PyBytes_FromFormat
+#define Bytes_ConcatAndDel PyBytes_ConcatAndDel
+#define _Bytes_Resize _PyBytes_Resize
+
+#define INIT_MODULE(m) PyInit_ ## m
+
+#define PyLong_FromOid(x) (PyLong_FromUnsignedLong((unsigned long)(x)))
+
+/* expose Oid attributes in Python C objects */
+#define T_OID T_UINT
+
+#endif /* !defined(PSYCOPG_PYTHON_H) */