try this: gname = 'nate' def test(): gname = 'amy' print gname
test() print gname outputs: 'amy' 'nate' whereas this: gname = 'nate' def test(): global gname gname = 'amy' print gname test() print gname outputs: 'amy' 'amy' Luis M. González wrote: > Bruno Desthuilliers wrote: > > > > def doIt(name=None): > > global gname > > if name is None: > > name = gname > > else: > > gname = name > > > > Sorry for this very basic question, but I don't understand why I should > add the global into the function body before using it. > This function works even if I don't add the global. > Just to try this out, I wrote this variant: > > gname = 'Luis' > > def doIt2(name=None): > if name is None: > name = gname > return name > > print doIt2() --> returns Luis. > > So, what's the point of writing the function this way instead? > > def doIt2(name=None): > global gname > if name is None: > name = gname > return name > > > luis -- http://mail.python.org/mailman/listinfo/python-list
