referencing variable from function outside of the function

Question

I am having trouble assigning a variable as global (i think this is my problem, at least).

Heres a representation of my code:

def get_alert(): 

    global subject

    # ...code ... 

    subject = # unread email's subject line 


while True:

    try:

        get_alert()

    except EOFError:

        get_alert() # try again    

    else:

        if subject == 'specific message here'

            # ...code...

From what i've read assigning the variable as global at the top of the get_alert function should allow me to reference it in the while loop, however running the program it tells me, 'NameError: name 'subject' is not defined' for the subject in the while loop

You should return it instead.

SLaks
– SLaks

2019-04-17 15:08:16 +00:00
Commented Apr 17, 2019 at 15:08 — SLaks
– SLaks, Commented Apr 17, 2019 at 15:08

lmiguelvargasf · Accepted Answer · 2019-04-17 15:10:56Z

1

You have to define subject before you use it, if you add

subject = None

at the beginning of your script, preferable after the imports, I think that will work.

answered Apr 17, 2019 at 15:10

lmiguelvargasf

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