python help

[flyingsliverfin]

im a complete newbie at python (only been using it for about 2 months and am not very devoted to learning, im too busy, and i think im rushing through A Byte of Python (my turorial))

im my code I have tried to combine what I learned just then, but i get some error messageI can't figure out :(. can some1 tell me whats wrong with it? (I just need to know)


listnow = ['a','b']
listlater = ['(c','(d']

print 'my lists are',listnow,listlater,'\nnow my list is',listnow,'\nlater it is',listlater
print '\nin 10 minutes I will finish',listnow[0],'\n then I will have to',listlater[0]
del listnow[0]
listnow.append(listlater)
del listlater
print 'my lists are now',listnow,listlater

[Xarver]

Sorry, be we can't help you if you don't do these things:

1. Use CODE tags! We need readable code...
2. Paste the EXACT error.

After you do these things than we'll happily help you.

[Martin Witte]

i get some error messageI can't figure out :(. can some1 tell me whats wrong with it? (I just need to know)


I copied / pasted your code in a text file and let the Python interpreter run that, then I get:

1 #!/usr/bin/env python
2 listnow = ['a','b']
3 listlater = ['(c','(d']
4
5 print 'my lists are',listnow,listlater,'\nnow my list is',listnow,'\nlater it is',listlater
6 print '\nin 10 minutes I will finish',listnow[0],'\n then I will have to',listlater[0]
7 del listnow[0]
8 listnow.append(listlater)
9 del listlater
10 print 'my lists are now',listnow,listlater
~ (I turned line numbering on in vi)

The output I get:

my lists are ['a', 'b'] ['(c', '(d']
now my list is ['a', 'b']
later it is ['(c', '(d']

in 10 minutes I will finish a
then I will have to (c
my lists are now ['b', ['(c', '(d']]
Traceback (most recent call last):
File "./test.py", line 10, in <module>
print 'my lists are now',listnow,listlater
NameError: name 'listlater' is not defined

The error you get says 'listlater' is not defined in line 10, which makes sense, because in line 9 you deleted that object

[StunnerAlpha]

If you want to delete one element of listlater use:


del listlater[i]

Where "i" is an index value (like 0 or 1) that corresponds to a certain element in the list.

[flyingsliverfin]

ooook. thx all