Error when using a string as a parameter

Question

I have a list of floats [234, 533, 734, 964, 623, 744, 244, 353, 264]. Then, I format it to a string like "(234, 533, 734), (964, 623, 744), (244, 353, 264)".

This is a format example of the function I'm passing it to:

cmds.curve( p=[(0, 0, 0), (3, 5, 6), (5, 6, 7), (9, 9, 9)] )

Here's what I used that returned an error:

cmds.curve( p = [ pStr ] )

Here's the error:

Line 142: Invalid arguments for flag 'p'. Expected ( distance, distance, distance ), got [ str, str ] #

You must change the string to numbers. Is this a python related question? because you could add Python as a tag too. — Zeddy, Mar 21 '13 at 00:10
Thanks for the quick response Zaf. I have no idea how to do that. Is my approach the correct way? — Warren Daza, Mar 21 '13 at 00:15
There was another question similar here on stack overflow http://stackoverflow.com/questions/379906/python-parse-string-to-float-or-int maybe that help you — Zeddy, Mar 21 '13 at 00:22

score 1 · Answer 1 · answered Mar 21 '13 at 00:25

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Try this and see if it works for you. I have a feeling that you are converting to a string unnecessarily.

floats = [234, 533, 734, 964, 623, 744, 244, 353, 264]
groups = [tuple(floats[i:i+3]) for i in range(0, len(floats), 3] 
cmds.curve(p=groups)

answered Mar 21 '13 at 00:25

sberry

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score 1 · Answer 2 · edited May 23 '17 at 12:28

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Try using zip, click here for the python docs.

>>> my_list = [234, 533, 734, 964, 623, 744, 244, 353, 264]
>>> zip(*[iter(my_list)]*3)
[(234, 533, 734), (964, 623, 744), (244, 353, 264)]

edited May 23 '17 at 12:28

Community

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answered Mar 21 '13 at 00:26

John

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Heh, this might be too clever :P Also, what's with the `1:`? – askewchan Mar 21 '13 at 03:28
@askewchan, I used a program called [dreampie](http://www.dreampie.org/) as my python shell, and it puts those number in there. – John Mar 21 '13 at 10:49

Error when using a string as a parameter

2 Answers2