Added printing requirements

zope/interface/_compat.py

@@ -0,0 +1,69 @@
+##############################################################################
+#
+# 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
+"""
+import sys
+import types
+
+if sys.version_info[0] < 3: #pragma NO COVER
+
+    def _u(s):
+        return unicode(s, 'unicode_escape')
+
+    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: #pragma NO COVER
+
+    def _u(s):
+        return s
+
+    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): #pragma NO COVER
+    if sys.version_info[0] < 3:
+        return test_method
+    def _dummy(*args):
+        pass
+    return _dummy
+
+def _skip_under_py2(test_method): #pragma NO COVER
+    if sys.version_info[0] > 2:
+        return test_method
+    def _dummy(*args):
+        pass
+    return _dummy