Convert comma separated string of floats into list?

Question

I need to define a function txtnum(L) that takes a string of comma separated floats such as "1.5,2.5,3.5" as a parameter and converts it into a list [1.5, 2.5, 3.5].

I have tried using .split(), .join(), map(), etc and cannot get anything to return a list that does NOT include quotations. I'm pretty new to Python and a little lost here.

How would I go about doing this?

Answer 1

You need to convert the datatype of splitted vars because splitting alone string gives you a list of strings.

>>> s = "1.5,2.5,3.5"
>>> [float(i) for i in s.split(',')]
[1.5, 2.5, 3.5]
>>> 

or

>>> map(float, s.split(','))
[1.5, 2.5, 3.5]