[issue15795] Zipfile.extractall does not preserve file permissions

Changes by William Ehlhardt williamehlha...@gmail.com: -- nosy: +Orborde ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15795 ___ ___ Python-bugs

[issue21136] fractions.Fraction.__pow__ does unneeded renormalization

New submission from William Ehlhardt: The following Python runs unnecessarily slowly: import fractions fractions.Fraction(6249919, 625) ** 89993 The problem here is that Fraction.__pow__ constructs a new Fraction() to return, and Fraction.__new__ tries to gcd to normalize the numerator