[Python-Dev] py3k: print function treats sep=None and end=None in an unintuitive way (original) (raw)
Eric Smith eric+python-dev at trueblade.com
Tue Apr 8 16:22:45 CEST 2008
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[Sorry for the dupes. Lesson: never try and send mail from a moving train.]
Eric Smith wrote:
Alessandro Guido wrote:
Can anybody please point me why print('a', 'b', sep=None, end=None) should produce "a b\n" instead of "ab"? I've read http://docs.python.org/dev/3.0/library/functions.html#print, pep-3105 and some ml threads but did not find a good reason justifying such a strange behaviour.
Thanks. -Alessandro Guido Because None means 'use the default value'. You probably want: print('a', 'b', sep='', end='') >>> import io >>> s = io.StringIO() >>> print('a', 'b', end='', sep='', file=s) >>> s.getvalue() 'ab' >>>
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