--- /dev/null
+
+__doc__ = ''
+
+import sys
+if sys.version_info >= (2,6):
+ __doc__ = '''
+>>> float_is_integer(1.0)
+True
+>>> float_is_integer(1.1)
+False
+'''
+if sys.version_info >= (3,1):
+ __doc__ = '''
+>>> int_bit_length(1) == (1).bit_length()
+True
+>>> int_bit_length(1234) == (1234).bit_length()
+True
+'''
+
+def float_is_integer(float f):
+ # requires Python 2.6+
+ return f.is_integer()
+
+def int_bit_length(int i):
+ # requires Python 3.x
+ return i.bit_length()
+
+
+def float__add__(float f):
+ """
+ >>> float__add__(5.0)
+ 7.0
+ """
+ return f.__add__(2)
+
+def int__add__(int i):
+ """
+ >>> int__add__(5)
+ 7
+ """
+ return i.__add__(2)