New issue 1960: print_function behavior different from CPython on file=None https://bitbucket.org/pypy/pypy/issue/1960/print_function-behavior-different-from
Jim Witschey: The [documentation for the `print` function](https://docs.python.org/3/library/functions.html?highlight=print#print) states: > The `file` argument must be an object with a write(string) method; if it is > not present or None, sys.stdout will be used. In CPython, this behavior holds: ``` bash $ python2.7 -c "from __future__ import print_function ; print('test', file=None)" test ``` but it does not in PyPy: ``` bash $ pypy -c "from __future__ import print_function ; print('test', file=None)" ``` (It's hard to show the absence of something -- note that this doesn't print anything.) This behavior is implemented correctly in pypy3: ``` bash $ pypy3 -c "print('test', file=None)" test ``` Version information: ``` bash $ pypy --version Python 2.7.8 (a980ebb26592ed26706cd33a4e05eb45b5d3ea09, Oct 21 2014, 20:15:33) [PyPy 2.4.0 with GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.54)] $ python2.7 --version Python 2.7.9 ``` _______________________________________________ pypy-issue mailing list [email protected] https://mail.python.org/mailman/listinfo/pypy-issue
