Calling a variable from one function in another

Question

I have a class, in which two functions are present.

I wish to access a variable created within one function from the other.

Here is an example of what I'm trying to do:

def __init__(self, parent, controller):
    tk.Frame.__init__(self,parent)

    Message1 = None
    Keyword1 = None
    Keyword2 = None


    Message_Ent = tk.Entry(self, textvariable = Message1)
    Key1_Ent = tk.Entry(self, textvariable = Keyword1)
    Key2_Ent = tk.Entry(self, textvariable = Keyword2)


def Main_Cipher(*args):
    #Need to use these variables:
    #Message1
    #Keyword1
    #Keyword2

Can you give an example? I'm not quite clear what you are asking. — zondo
– zondo, Commented Feb 26, 2016 at 18:14
Tkinter is no different than anything else in python. Without seeing code it's impossible to know what you're doing wrong. Please read stackoverflow.com/help/mcve — Bryan Oakley
– Bryan Oakley, Commented Feb 26, 2016 at 21:30

River · Accepted Answer · 2016-02-27 06:46:11Z

1

Right now Message1, Keyword1, and Keyword2 are local variables. You want to make them instance variables of the class. You do this using the self keyword:

def __init__(self, parent, controller):
    tk.Frame.__init__(self,parent)

    self.Message1 = None
    self.Keyword1 = None
    self.Keyword2 = None


    Message_Ent = tk.Entry(self, textvariable = self.Message1)
    Key1_Ent = tk.Entry(self, textvariable = self.Keyword1)
    Key2_Ent = tk.Entry(self, textvariable = self.Keyword2)


def Main_Cipher(*args):
    #these are now accessible here:
    print self.Message1
    print self.Keyword1
    print self.Keyword2

answered Feb 27, 2016 at 6:46

River

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2 Comments

Smiffy Over a year ago

That just outputs : PY_VAR0, PY_VAR1, PY_VAR2 for the variables

River Over a year ago

So those are the values of those variables... is that not what you expect? Look here, you might be overwriting them: stackoverflow.com/questions/31126872/…

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