How to split the indexes of a string?

Question

When I try to split this string:

str1 = ("S8 10 -945 1689 -950 230 -25 1 1e-13")
print(str1[0,1].split(' '))

I get this error print(str1[0,1].split(' ')) TypeError: string indices must be integers

How would I split this the first two indexes of this string in python?

What are you trying to do by `str1[0,1]` ? (which is illegal syntax) — Nir Alfasi, Sep 14 '15 at 22:14
are you asking how to get the first two terms in the string? — Alex, Sep 14 '15 at 22:15
What do you want the result to be? What do you mean by "indexes"? — interjay, Sep 14 '15 at 22:17

score 0 · Answer 1 · edited May 23 '17 at 11:44

0

.split() the string first, and then slice the list to retrieve the first two values.

str = "S8 10 -945 1689 -950 230 -25 1 1e-13"
print str.split(' ')[:2]  # ['S8', '10']

edited May 23 '17 at 11:44

Community

answered Sep 14 '15 at 22:19

Sam

And to avoid unnecessary work, pass the `maxsplit` argument to split so it doesn't split beyond the point you care about: `print str1.split(' ', 2)[:2]` does the same thing, while avoiding excess work. – ShadowRanger Sep 14 '15 at 22:31
How would I split the S8 of the first index? – Dabes561 Sep 15 '15 at 00:13
@Sam: Nope, second argument is 2, not 3. It's the maximum number of splits, not the number of components produced (which is `maxsplits + 1`, assuming there are at least `maxsplits` split points). If you only want two components, you only need two splits, one for each component. Python differs from some other languages here. – ShadowRanger Sep 15 '15 at 10:33
How do you ***want*** to split the `S8` of the first index? – Sam Sep 15 '15 at 13:33

1 Answers1