Python "append" function

Question

I'm having problems with adding accounts to mapping with function append.

mapp = ["example"]

example1 = raw_input("Enter Username: ")
if example1 in mapp:
    print "yay"
else:
    print ("Forgot Username eh?")
    example = raw_input("Enter New Username: ")
    if example not in mapp:
        mapp.append(sana)

So as you can see from the script, if i enter username "example", program prints "yay". And if i type wrong i can create new "account" what i can use next time when i want my program to print "yay". But when i try to add new "account" it doesn't work. I don't get any error messages or anything but it just doesn't add new "account" to mapp. So any ideas ?

Where is the variable sana defined?

Martijn Pieters
– Martijn Pieters

2013-01-28 15:13:16 +00:00
Commented Jan 28, 2013 at 15:13 — Martijn Pieters
– Martijn Pieters, Commented Jan 28, 2013 at 15:13

Martijn Pieters · Accepted Answer · 2013-01-28 15:13:57Z

3

You are not appending the right variable to mapp; you are appending sana but you should have appended example instead:

if example not in mapp:
    mapp.append(example)

For this use-case, you could use a set instead:

mapp = {'example'}

# ...
if example1 in mapp:
    # ...
else:
    # ... 
    example = raw_input("Enter New Username: ")
    mapp.add(example)

answered Jan 28, 2013 at 15:13

Martijn Pieters

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1 Comment

user1994934 Over a year ago

I fixed that. But now it's giving me an error "set object has no attribute 'append'" Can you still help me ? Thanks

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