[print >>] None
BPettersen at NAREX.com
Tue Oct 23 20:35:21 CEST 2001
> From: Erik Max Francis [mailto:max at alcyone.com]
> Larry Whitley wrote:
> > def output(self, fout):
> > print >>fout, self.thing1, self.thing2, self.thing3
> > In the calling program I say:
> > object.output( fout ) # print to file
> > object.output( None) # print to standard output
> > But Python complains that None is a variable that has not been
> > previously set. Can someone explain? I thought None was the empty
> > object reference.
> > Where have I gone astray?
> It's not clear to me why you expected this work. print >>
> None is not the same as plain old print. print >> x requires
> an (output) file object, and None isn't one.
It's actually part of the magic of print >> None that it prints to
sys.stdout (yeah, I know, I wasn't in favor of that either ;-)
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