Re: problem updating variable in a module

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  • Tim Rowe

    Re: problem updating variable in a module

    2008/9/24 <dudeja.rajat@g mail.com>:
    Hi,
    >
    I've a problem updating my variable in a module.
    >
    In my main program, I call a function from mod1 to update a variable of mod1
    As soon as I update this varibale, I check it back in the mail program but
    it the variable from mod1 does not get updated.
    >
    main Program:
    *************** *
    import mod1
    a = 20
    mod.update(a)
    print mod.a <---- does not print anything
    >
    mod1
    ********
    a = 10
    def update(someInt) :
    global a
    a = someInt
    print a <---- this does actually print a = 20
    I'm surprised it runs at all -- as far as I can see "mod" in
    "mod.update (a)" and "print mod.a" is not defined. Did you mean "mod1"?
    If I change it to that, both print statements print "20" as I'd
    expect.

    I take it you do have a *really* good reason to use a global?

    --
    Tim Rowe
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