Fixed error in Python 2.6

1 files changed, 14 insertions, 7 deletions

diff --git a/documentation.py b/documentation.py
index 53b42cd..78872f7 100644
--- a/documentation.py
+++ b/documentation.py
@@ -90,7 +90,7 @@ Definitions
 ------------------------------------
 
 Technically speaking, any Python object which can be called with one argument
-can be used as  a decorator. However, this definition is somewhat too large
+can be used as a decorator. However, this definition is somewhat too large
 to be really useful. It is more convenient to split the generic class of
 decorators in two subclasses:
 
@@ -659,7 +659,7 @@ decorated with `dispatch_on` is turned into a generic function
 and it is the one which is called if there are no more specialized
 implementations. Usually such default function should raise a
 NotImplementedError, forcing peope to register some implementation.
-The registration can be done as a decorator:
+The registration can be done with a decorator:
 
 $$writefloat
 
@@ -675,17 +675,24 @@ I could give a down-to-earth example of situations in which it is desiderable
 to dispatch on more than one argument (for instance once I implemented
 a database-access library where the first dispatching argument was the
 the database driver and the second the database record), but here I prefer
-to follow the old tradition and show the time-honored
+to follow the tradition and show the time-honored
 Rock-Paper-Scissor example:
 
 $$Rock
 $$Paper
 $$Scissor
 
-I have added an ordinal to the Rock-Paper-Scissor classes to
-simplify the implementation of the generic function. There are
-9 combinations, however combinations with the same ordinal
-correspond to parity. Moreover by exchanging.
+I have added an ordinal to the Rock-Paper-Scissor classes to simplify
+the implementation. The idea is to define a generic function `win(a,
+b)` of two arguments corresponding to the moves of the first and
+second player respectively. The moves are instances of the classes
+Rock, Paper and Scissors; Paper wins over Rock, Scissor wins over
+Paper and Rock wins over Scissor. The function with return +1 for a
+win, -1 for a loss and 0 for parity. There are 9 combinations, however
+combinations with the same ordinal (i.e. the same class) return 0;
+moreover by exchanging the order of the arguments the sign of the
+result changes, so it is enough to specify only 3 direct
+implementations:
 
 $$win
 $$winRockPaper