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up vote 3 down vote favorite
2

In my python Script I have:

user = nuke.getInput("Frames Turned On")
userLst = [user]
print userLst

Result: ['12,33,223']

I was wondering How I would remove the ' in the list, or somehow convert it into int?

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1  
You want to turn three numbers separated by commas into an int? How should that work? –  Ignacio Vazquez-Abrams Jun 16 '11 at 21:32
    
@Ignacio: To explain what Nick probably means: If you "remove the '" in the list ['12,33,223'], you get [12,33,223] -- at least this is how I read it... –  Sven Marnach Jun 16 '11 at 21:40

6 Answers 6

up vote 15 down vote

Use split() to split at the commas, use int() to convert to integer:

user_lst = map(int, user.split(","))
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up vote 6 down vote

There's no ' to remove in the list. When you print a list, since it has no direct string representation, Python shows you its repr—a string that shows its structure. You have a list with one item, the string 12,33,223; that's what [user] does.

You probably want to split the string by commas, like so:

user_list = user_input.split(',')

If you want those to be ints, you can use a list comprehension:

user_list = [int(number) for number in user_input.split(',')]
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up vote 0 down vote 
[int(s) for s in user.split(",")]

I have no idea why you've defined the separate userLst variable, which is a one-element list.

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up vote 0 down vote 
>>> ast.literal_eval('12,33,223')
(12, 33, 223)
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Not so good if the user is allowed to enter a single number. –  Eevee Jun 16 '11 at 22:02
    
Sure, but that's easy enough to catch. –  Ignacio Vazquez-Abrams Jun 16 '11 at 22:03
    
why not just eval('12,33,223', {}) ? That will only allow the same things as literal_eval do. BTW OP may not want things other than numbers –  user780363 Jun 16 '11 at 23:47
    
And things that are not numbers are easy enough to catch. –  Ignacio Vazquez-Abrams Jun 17 '11 at 0:14
up vote -2 down vote 
>>> result = ['12,33,223']
>>> int(result[0].replace(",", ""))
1233233
>>> [int(i) for i in result[0].split(',')]
[12, 33, 233]
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up vote -2 down vote

You could use the join method and convert that to an integer:

int(''.join(userLst))

1233223

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This doesn't really answer the question, or address the actual problem. –  Eevee Jun 16 '11 at 21:36
    
@Eevee - How does this not convert a string list into an int? –  tylerdavis Jun 16 '11 at 21:39
    
It's a single string in a list, not a list of strings. –  Ignacio Vazquez-Abrams Jun 16 '11 at 21:40
    
Oh, I missed it! –  tylerdavis Jun 16 '11 at 21:45

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