+ revert moving numbers.Rational check

Author: skirpichev

Lib/fractions.py

@@ -224,6 +224,11 @@ def __new__(cls, numerator=0, denominator=None):
                 self._denominator = 1
                 return self
 
+            elif isinstance(numerator, numbers.Rational):
+                self._numerator = numerator.numerator
+                self._denominator = numerator.denominator
+                return self
+
             elif (isinstance(numerator, float) or
                   (not isinstance(numerator, type) and
                    hasattr(numerator, 'as_integer_ratio'))):
@@ -286,11 +291,6 @@ def __new__(cls, numerator=0, denominator=None):
                     raise ValueError('Invalid literal for Fraction: %r' %
                                      fraction_literal)
 
-            elif isinstance(numerator, numbers.Rational):
-                self._numerator = numerator.numerator
-                self._denominator = numerator.denominator
-                return self
-
             else:
                 raise TypeError("argument should be a string or a Rational "
                                 "instance or have the as_integer_ratio() method")