Added a utils.python module for python-esque things.

src/utils/__init__.py

@@ -102,5 +102,6 @@ import seq
 import str
 import file
 import iter
+import python
 
 # vim:set shiftwidth=4 tabstop=4 expandtab textwidth=79:

src/utils/python.py

@@ -0,0 +1,53 @@
+###
+# Copyright (c) 2005, Jeremiah Fincher
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#   * Redistributions of source code must retain the above copyright notice,
+#     this list of conditions, and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright notice,
+#     this list of conditions, and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#   * Neither the name of the author of this software nor the name of
+#     contributors to this software may be used to endorse or promote products
+#     derived from this software without specific prior written consent.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+###
+
+class Object(object):
+    def __ne__(self, other):
+        return not self == other
+    
+class TupleSubclass(type):
+    def __new__(cls, name, bases, dict):
+        assert tuple in bases
+        assert '__attrs__' in dict
+        for (i, attr) in enumerate(dict['__attrs__']):
+            dict[attr] = property(lambda self, i=i: self[i])
+        del dict['__attrs__']
+        # XXX Check the length of the iterable given.
+        return super(TupleSubclass, cls).__new__(cls, name, bases, dict)
+        
+        
+class Acquire(object):
+    # Mixin for acquiring attributes from parents.
+    def __init__(self, attr):
+        self.__parent = attr
+
+    def __getattr__(self, attr):
+        return getattr(self.__parent, attr)
+    
+# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: