"Ron" <[EMAIL PROTECTED]> wrote:
On Tue, 22 Mar 2005 21:56:57 GMT, Ron <[EMAIL PROTECTED]> wrote:
Why should a function not create a local varable of an argument if the varable doesn't exist and a default value is given?
ok... thought it out better. :)
Getting a default into a function isn't the problem. Returning the value to a varable that doesn't exist is.
So then the question is ... is there a way for a function to create a varable in it's parents namespace that persists after the function is done?
Yeap.. a simple one-liner can do the trick:
def makeVars(**nameVals): sys._getframe(1).f_locals.update(nameVals)
try: b except NameError: print "Before makeVars: NameError" else: print "Before makeVars: Not NameError" makeVars(b=2) try: b except NameError: print "After makeVars: NameError" else: print "After makeVars: Not NameError"
Interesting. I'll keep a copy of this one in my cookbook for further exploration. But I think I would use such a thing in production code.
>>> b = 25 >>> makeVars(b=88) >>> b 88
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bruno desthuilliers
python -c "print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for p in '[EMAIL PROTECTED]'.split('@')])"
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