Remove trailing whitespace {python,scm,lily,scripts}.

python/rational.py

 """Implementation of rational arithmetic."""
 
 
 
 import math as _math
 
 def _gcf(a, b):
     """Returns the greatest common factor of a and b."""
     a = abs(a)
     b = abs(b)
     while b:
         a, b = b, a % b
     return a
 
 class Rational(object):
     """
     This class provides an exact representation of rational numbers.
- 
+
     All of the standard arithmetic operators are provided.  In mixed-type
     expressions, an int or a long can be converted to a Rational without
     loss of precision, and will be done as such.
 
     Rationals can be implicity (using binary operators) or explicity
     (using float(x) or x.decimal()) converted to floats or Decimals;
     this may cause a loss of precision.  The reverse conversions can be
     done without loss of precision, and are performed with the
     from_exact_float and from_exact_decimal static methods.  However,
     because of rounding error in the original values, this tends to
@@ skipping 227 matching lines @@
             minError = error
     return result
 
 def divide(x, y):
     """Same as x/y, but returns a Rational if both are ints."""
     if isinstance(x, int) and isinstance(y, int):
         return Rational(x, y)
     else:
         return x / y