Use variable after use on function

[analfabete]

Hi everybody !
Currently i have a problem about 10 code lines on my mass mailling script

min_id = 0
max_id = 99
 
while max_iduser[0] >= min_id:
 
    recup_mail(min_id ,max_id)
 
    min_id += 100
    max_id += 100
    time.sleep(30)
 
else :
    sys.exit()
 
 

My problem is after use recup_mail(...), min_id and max_id have a variable type like NULL
Can you tell me how i can increment the both variable
Thanks !

[bartonc]

If it were a function call, it would look like this:

def MassMail(whatever):
    global min_id, max_id
    # code that changes values here
 
# changed "global" variable may be used here

Although the use of globals is highly discourage. The best way is to return them from the function that changes them:

def MassMail(min_id, max_id):
    min_id += 100
    max_id += 100
    return min_id, max_id
 
min_id, max_id = MassMail(0, 100)
print min_id, max_id

This reduces errors by making changed in variables close to where they are assigned.