Global variable for each function

Question

I have lots of functions, they all edit some variable but I want each to edit the previously edited variable (by the prior function):

text = "a"    
def a():
        text + " hi"
        print(text)
def b():
       text + " there"
       print(text)
def main():
      a()
      b()
main()

^So when running main I want this to appear:

>>a hi
>>a hi there

I've tried global but I can't seem get it working

Chris · Accepted Answer · 2018-02-22 21:15:11Z

1

Even when using global, you still have to re-assign a new value to the global variable - in your case text. text + " hi" simply creates a new string and throws it away. Use global text and then do text = 'text' + <string> as well:

text = "a"    

def a():
    global text
    text = text + " hi"
    print(text)

def b():
    global text
    text = text + " there"
    print(text)

def main():
      a()
      b()
main()

The above now outputs:

a hi
a hi there

answered Feb 22, 2018 at 21:15

Chris

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2 Comments

Gskgskgx Bczkgxlhx Over a year ago

Thank you very much. Out of interest, if text ="a" was in a separate function and not outside them all, how would one call it in a different function?

Chris Over a year ago

You'd still use global. Here's a simple example of what I mean @GskgskgxBczkgxlhx. Also, please don't forget to mark my answer if it helped you :-)

Ami Hollander · Accepted Answer · 2018-02-22 21:19:45Z

0

use global in order to reassign text variable

text = "a"    
def a():
    global text
    text += " hi"
    print(text)
def b():
    global text
    text += " there"
    print(text)
def main():
    a()
    b()
main()

result with

a hi
a hi there

edited Feb 22, 2018 at 21:19

answered Feb 22, 2018 at 21:15

Ami Hollander

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1 Comment

Ami Hollander Over a year ago

ofcourse, sorry i'd used online repl for testing and it paste it weird

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