view mercurial/thirdparty/zope/interface/_compat.py @ 51402:2e10ddbb9faa

phases: check secret presence the right way during discovery

There is an official function for this, lets use it.

This will prevent the code to break in the future while we refactor the phase
code.

##############################################################################
#
# Copyright (c) 2006 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Basic components support
"""
from __future__ import absolute_import

import sys
import types

if sys.version_info[0] < 3:

    def _normalize_name(name):
        if isinstance(name, basestring):
            return unicode(name)
        raise TypeError("name must be a regular or unicode string")

    CLASS_TYPES = (type, types.ClassType)
    STRING_TYPES = (basestring,)

    _BUILTINS = '__builtin__'

    PYTHON3 = False
    PYTHON2 = True

else:

    def _normalize_name(name):
        if isinstance(name, bytes):
            name = str(name, 'ascii')
        if isinstance(name, str):
            return name
        raise TypeError("name must be a string or ASCII-only bytes")

    CLASS_TYPES = (type,)
    STRING_TYPES = (str,)

    _BUILTINS = 'builtins'

    PYTHON3 = True
    PYTHON2 = False

def _skip_under_py3k(test_method):
    import unittest
    return unittest.skipIf(sys.version_info[0] >= 3, "Only on Python 2")(test_method)


def _skip_under_py2(test_method):
    import unittest
    return unittest.skipIf(sys.version_info[0] < 3, "Only on Python 3")(test_method)