Split a string containing multiple tuples into list of string tuples

Question

How can I split a string of tuples into a list?

For example I have this SARIMAX(0, 1, 1)x(0, 1, 1, 12) string, and I want to convert it into a list of tuples into this ['(0, 1, 1)', '(0, 1, 1, 12)']

This is my code:

sarimax_res = 'SARIMAX(0, 1, 1)x(0, 1, 1, 12)'
sarimax_res = sarimax_res.replace('SARIMAX', '').replace('x', '')

My output:

'(0, 1, 1)(0, 1, 1, 12)'

Is `sarimax_res.replace('SARIMAX', '').split('x')` what you want? Or did you actually want to convert the `'(0, 1, 1)'` and `'(0, 1, 1, 12)'` into real tuples and not just strings? — wkl, Sep 01 '22 at 03:37
@wkl Ahh, you're right, I can split it with x and replace SARIMAX — MADFROST, Sep 01 '22 at 03:40
@JiříBaum I just want split the string of tuples into a list — MADFROST, Sep 01 '22 at 03:41
@BeRT2me As on the question. I want convert it into ['(0, 1, 1)', '(0, 1, 1, 12)'] — MADFROST, Sep 01 '22 at 03:43
The issue is, those aren't tuples how you have it written. They're strings. — BeRT2me, Sep 01 '22 at 03:44
This is not a string of tuples ("SARIMAX" is not a tuple, neither is 'x'). To get the desired output you can just take two substrings, but I would assume that's not what you're trying to do so please add more details — TheFungusAmongUs, Sep 01 '22 at 04:28

BeRT2me · Accepted Answer · 2022-09-01T04:09:46.353

2

import re
from ast import literal_eval

sarimax_res = 'SARIMAX(0, 1, 1)x(0, 1, 1, 12)'
tuples = list(map(literal_eval, re.findall('\(.+?\)', sarimax_res)))
print(tuples)

# Output:
[(0, 1, 1), (0, 1, 1, 12)]

One-Liner for just strings:

re.findall('\(.+?\)', sarimax_res)

# Output:
['(0, 1, 1)', '(0, 1, 1, 12)']

edited Sep 01 '22 at 04:09

answered Sep 01 '22 at 03:39

BeRT2me

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Instead of splitting on `', '` in the second stage, it might be better to make it a regex search and split on `r',\s*'`; that depends on the data – Jiří Baum Sep 01 '22 at 03:41
Good to see the result! Thanks, it helps me, actually, I need the list of tuple strings. but anyway thanks!!! – MADFROST Sep 01 '22 at 03:42
@RudyTriSaputra added the string only method as well~ – BeRT2me Sep 01 '22 at 04:06

score 0 · Answer 2 · answered Sep 01 '22 at 03:40

ast.literal_eval can safely evaluate the string.

We can use it by replacing the x with a comma, making literal_eval return a tuple of tuples, since you wanted list it's just cast to a list.

from ast import literal_eval

sarimax_res = 'SARIMAX(0, 1, 1)x(0, 1, 1, 12)'
sarimax_res = sarimax_res.replace('SARIMAX', '').replace("x", ",")
list(literal_eval(sarimax_res))

>>> [(0, 1, 1), (0, 1, 1, 12)]

score 0 · Answer 3 · answered Sep 01 '22 at 03:45

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Since you wanted a list of string tuples you can just split the string on the x like this:

sarimax_res = 'SARIMAX(0, 1, 1)x(0, 1, 1, 12)'
sarimax_res.replace('SARIMAX', '').split("x")

>>> ['(0, 1, 1)', '(0, 1, 1, 12)']

answered Sep 01 '22 at 03:45

Mandera

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Split a string containing multiple tuples into list of string tuples

3 Answers3