CODEWITHSUNDEEP
python
Amit
Amit

Reputation: 793

How to split a string of numbers and letters into a list of strings and a list of numbers

Given a string containing a sequence of letters and numbers (such as):

"GHG-H89KKK90KKP"

Do we have any way to split this string into two lists, one containing the letters and one containing the numbers?

["GHG-H", "KKK", "KKP"] 
[89,90]

Upvotes: 1

Views: 441

Answers (2)

Flursch
Flursch

Reputation: 483

Use re.findall from the re (regular expressions) library to find patterns in the string. The first expression (?i)[a-z|-]+ finds all sequences of letters (ignoring case), it also includes hyphens (-). The second expression [0-9]+ finds all sequences of numbers in your string.

import re

string = "GHG-H89KKK90KKP"

print(re.findall("(?i)[a-z|-]+", string))
print(re.findall("[0-9]+", string))

Output:

['GHG-H', 'KKK', 'KKP']
['89', '90']

Upvotes: 8

mrCopiCat
mrCopiCat

Reputation: 919

I believe there is no straightforward way, but you an use the re library. For example:

import re

s = "GHG-H89KKK90KKP"

out = [c for c in re.split('\d', s) if c != '']

print(out)

the split gives you a list of the num characters by removing the '\D' non num (or non num characters by removing the nums using '\d'), and then the we delete the empty values. The print gives : ['GHG-H', 'KKK', 'KKP'] (for the use of '\d')

Upvotes: 0

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