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Remove support for Python older than 2.6

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Supporting very old Python versions is a maintenance burden,
especially with the several variant test files to maintain for Python
<2.6.

Since we have dropped support for older OpenSSL versions in
7b283d0e1d, RHEL 5 is now effectively
desupported, and that was also the only mainstream operating system
still using Python versions before 2.6, so it's a good time to drop
those as well.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/98b69261-298c-13d2-f34d-836fd9c29b21%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-01-08 21:48:44 +01:00
parent f5d28710c7
commit 37f21ed132
12 changed files with 7 additions and 1503 deletions
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29
src/pl/plpython/plpython.h
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@@ -59,16 +59,6 @@
#include <Python.h>
#endif
/*
* Py_ssize_t compat for Python <= 2.4
*/
#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
typedef int Py_ssize_t;
#define PY_SSIZE_T_MAX INT_MAX
#define PY_SSIZE_T_MIN INT_MIN
#endif
/*
* Python 2/3 strings/unicode/bytes handling. Python 2 has strings
* and unicode, Python 3 has strings, which are unicode on the C
@@ -80,15 +70,6 @@ typedef int Py_ssize_t;
* string to a Python string it converts the C string from the
* PostgreSQL server encoding to a Python Unicode object.
*/
#if PY_VERSION_HEX < 0x02060000
/* This is exactly the compatibility layer that Python 2.6 uses. */
#define PyBytes_AsString PyString_AsString
#define PyBytes_FromStringAndSize PyString_FromStringAndSize
#define PyBytes_Size PyString_Size
#define PyObject_Bytes PyObject_Str
#endif
#if PY_MAJOR_VERSION >= 3
#define PyString_Check(x) 0
#define PyString_AsString(x) PLyUnicode_AsString(x)
@@ -104,16 +85,6 @@ typedef int Py_ssize_t;
#define PyInt_AsLong(x) PyLong_AsLong(x)
#endif
/*
* PyVarObject_HEAD_INIT was added in Python 2.6. Its use is
* necessary to handle both Python 2 and 3. This replacement
* definition is for Python <=2.5
*/
#ifndef PyVarObject_HEAD_INIT
#define PyVarObject_HEAD_INIT(type, size) \
PyObject_HEAD_INIT(type) size,
#endif
/* Python 3 removed the Py_TPFLAGS_HAVE_ITER flag */
#if PY_MAJOR_VERSION >= 3
#define Py_TPFLAGS_HAVE_ITER 0