Accessing items in nested tuples

alex alecla at bluewin.ch
Tue Apr 21 22:03:16 CEST 2009


Hello everybody
I am able to access the data in a tuple via a for loop (see example
below).


#!/usr/bin/env python

class Test():
    def Data(self):
        return ("aa", "bb", "cc", "dd", "ee", "ff", "gg", "hh")
#        return (("aa", ("bb", "cc", "dd")), ("ee", ("ff", "gg",
"hh")), ("ii", ("jj", "kk", "ll")))

    def Process(self):
        for eachData in self.Data():
            print "Printing %s" % eachData


def main():
    print "Start processing data"
    prtData=Test()
    prtData.Process()
    print "Stop processing data"


if __name__ == '__main__':
    main()


However I do not find out how to access data items in a nested tuple
of
the type (("aa", ("bb", "cc", "dd")), ("ee", ("ff", "gg", "hh")),...).
In fact I am trying to refactor a simple GUI basing on an example
in "wxPython In Action", "Listing 5.5 A refactored example" where the
menues
are described in the way


    def menuData(self):
        return (("&File",
                ("&Open", "Open in status bar", self.OnOpen),
                ("&Quit", "Quit", self.OnCloseWindow)),
                ("&Edit",
                ("&Copy", "Copy", self.OnCopy),
                ("C&ut", "Cut", self.OnCut),
                 ...)))

    etc...


But I can not get the example running and I can't reprogram the
example to get it running for my case.

In IDLE I can print the individual tuples but not the items within.

IDLE 1.2.1
>>> data=(("aa", ("bb", "cc", "dd")), ("ee", ("ff", "gg", "hh")), ("ii", ("jj", "kk", "ll")))
>>> print data[0]
('aa', ('bb', 'cc', 'dd'))
>>> print data[1]
('ee', ('ff', 'gg', 'hh'))
>>> etc...


I would like to be able to access the dataitem "aa" or "bb", "cc",
"dd" individualy.
For sure I am most probably missing something which is evident, maybe
can anybody help?
Thanks Alex




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