x = eval(repr(sys.stdout)) ?

Gerson Kurz moc.q-dnan-p at p-nand-q.com
Wed Aug 7 12:40:35 CEST 2002


On Wed, 07 Aug 2002 10:23:41 GMT, Robert McLay
<mclay at cfdlab.ae.utexas.edu> wrote:

>What am I really trying to do here?  Well I want to redirect
>sys.stdout to be something else and the reset it back later.

like this? : 

#!/usr/bin/python
import sys

class devnullout:
    def write(self, msg):
	# rocket-science: emulate a /dev/null device
        pass
        
old_stdout = sys.stdout
sys.stdout = devnullout()

# TODO: add stuff that you won't see on sys.stdout
print "you don't see me"

# restore old stdout
sys.stdout = old_stdout
print "now you see me again"


>Only I don't want to have to remember that when later comes around
>that it was sys.stdout but some stream.

I don't get that. 

>So the question is:  Is there a way to save a "pointer" to a variable in
>python so that it can be set latter?

What does the one task - redirecting sys.stdout - have to do with
saving a pointer to a variable? 







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