remove leftover 2.5 compatibility code

Cython/Utility/CythonFunction.c

@@ -403,10 +403,6 @@ static PyGetSetDef __pyx_CyFunction_getsets[] = {
     {0, 0, 0, 0, 0}
 };
 
-#ifndef PY_WRITE_RESTRICTED /* < Py2.5 */
-#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
-#endif
-
 static PyMemberDef __pyx_CyFunction_members[] = {
     {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
     {0, 0, 0,  0, 0}

docs/src/reference/special_methods_table.rst

@@ -107,7 +107,7 @@ Numeric conversions
 +-----------------------+---------------------------------------+-------------+-----------------------------------------------------+
 | __hex__               | self                                  | object      | Convert to hexadecimal                              |
 +-----------------------+---------------------------------------+-------------+-----------------------------------------------------+
-| __index__ (2.5+ only) | self                                  | object      | Convert to sequence index                           |
+| __index__             | self                                  | object      | Convert to sequence index                           |
 +-----------------------+---------------------------------------+-------------+-----------------------------------------------------+
 
 In-place arithmetic operators

docs/src/userguide/debugging.rst

@@ -8,7 +8,7 @@ Debugging your Cython program
 
 Cython comes with an extension for the GNU Debugger that helps users debug
 Cython code. To use this functionality, you will need to install gdb 7.2 or
-higher, built with Python support (linked to Python 2.5 or higher).
+higher, built with Python support (linked to Python 2.6 or higher).
 The debugger supports debuggees with versions 2.6 and higher. For Python 3,
 code should be built with Python 3 and the debugger should be run with
 Python 2 (or at least it should be able to find the Python 2 Cython

runtests.py

@@ -292,24 +292,6 @@ def _is_py3_before_32(excluded, version):
 VER_DEP_MODULES = {
     # tests are excluded if 'CurrentPythonVersion OP VersionTuple', i.e.
     # (2,4) : (operator.lt, ...) excludes ... when PyVer < 2.4.x
-    (2,4) : (operator.lt, lambda x: x in ['run.extern_builtins_T258',
-                                          'run.builtin_sorted',
-                                          'run.reversed_iteration',
-                                          ]),
-    (2,5) : (operator.lt, lambda x: x in ['run.any',
-                                          'run.all',
-                                          'run.yield_from_pep380',  # GeneratorExit
-                                          'run.generator_frame_cycle', # yield in try-finally
-                                          'run.generator_expressions_in_class',
-                                          'run.absolute_import',
-                                          'run.relativeimport_T542',
-                                          'run.relativeimport_star_T542',
-                                          'run.initial_file_path',  # relative import
-                                          'run.pynumber_subtype_conversion',  # bug in Py2.4
-                                          'build.cythonize_script',  # python2.4 -m a.b.c
-                                          'build.cythonize_script_excludes',  # python2.4 -m a.b.c
-                                          'build.cythonize_script_package',  # python2.4 -m a.b.c
-                                          ]),
     (2,6) : (operator.lt, lambda x: x in ['run.print_function',
                                           'run.language_level', # print function
                                           'run.cython3',

setup.py

@@ -6,11 +6,8 @@ except ImportError:
 import os
 import sys
 
-try:
-    import platform
-    is_cpython = not hasattr(platform, 'python_implementation') or platform.python_implementation() == 'CPython'
-except (ImportError, NameError):
-    is_cpython = True # CPython < 2.6
+import platform
+is_cpython = platform.python_implementation() == 'CPython'
 
 if sys.platform == "darwin":
     # Don't create resource files on OS X tar.

tests/run/generators.pyx

 # mode: run
 # tag: generators
 
-try:
-    from builtins import next # Py3k
-except ImportError:
-    def next(it):
-        return it.next()
-
-if hasattr(__builtins__, 'GeneratorExit'):
-    GeneratorExit = __builtins__.GeneratorExit
-else: # < 2.5
-    GeneratorExit = StopIteration
-
 def very_simple():
     """
     >>> x = very_simple()

tests/run/unportable_capi_functions.pyx

-# mode: run
-# tag: portability
-
-# test some C-API functions that Cython replaces for portability reasons
-
-from cpython.number cimport PyNumber_Index, PyIndex_Check
-
-def number_index(x):
-    """
-    >>> number_index(1)
-    1
-    >>> try: number_index(1.1)
-    ... except TypeError: pass
-    ... else: print("FAILED")
-    >>> try: number_index(1j)
-    ... except TypeError: pass
-    ... else: print("FAILED")
-    >>> try: number_index('abc')
-    ... except TypeError: pass
-    ... else: print("FAILED")
-    """
-    # was not available in Py2.4
-    return PyNumber_Index(x)
-
-def index_check(x):
-    """
-    >>> index_check(1)
-    True
-    >>> index_check(1.1)
-    False
-    >>> index_check(1j)
-    False
-    >>> index_check('abc')
-    False
-    """
-    # was not available in Py2.4
-    return PyIndex_Check(x)

tests/run/yield_from_pep380.pyx

@@ -9,11 +9,6 @@ see <http://www.cosc.canterbury.ac.nz/greg.ewing/python/yield-from/YieldFrom-Pyt
 
 import sys
 
-try:
-    _next = next  # not in Py<=2.5
-except NameError:
-    def _next(it):
-        return it.next()
 
 def _lines(trace):
     for line in trace:
@@ -1018,7 +1013,7 @@ def yield_in_return(x):
     >>> x = yield_in_return(range(3))
     >>> for _ in range(10):
     ...     try:
-    ...         print(_next(x))
+    ...         print(next(x))
     ...     except StopIteration:
     ...         if sys.version_info >= (3,3):
     ...             print(sys.exc_info()[1].value is None)