Roll back r60248. It's useful to encourage users not to change Rational
instances.
diff --git a/Lib/rational.py b/Lib/rational.py
index 2222045..bc2259b 100755
--- a/Lib/rational.py
+++ b/Lib/rational.py
@@ -43,7 +43,7 @@
"""
- __slots__ = ('numerator', 'denominator')
+ __slots__ = ('_numerator', '_denominator')
# We're immutable, so use __new__ not __init__
def __new__(cls, numerator=0, denominator=1):
@@ -93,8 +93,8 @@
raise ZeroDivisionError('Rational(%s, 0)' % numerator)
g = gcd(numerator, denominator)
- self.numerator = int(numerator // g)
- self.denominator = int(denominator // g)
+ self._numerator = int(numerator // g)
+ self._denominator = int(denominator // g)
return self
@classmethod
@@ -168,6 +168,14 @@
result = new
return result
+ @property
+ def numerator(a):
+ return a._numerator
+
+ @property
+ def denominator(a):
+ return a._denominator
+
def __repr__(self):
"""repr(self)"""
return ('Rational(%r,%r)' % (self.numerator, self.denominator))