CODEWITHSUNDEEP
pythonregexstringlist
Jack Parkinson
Jack Parkinson

Reputation: 711

Split a string on an integer

I need to take a string 'list' as input and format it accordingly. Here is some example input:

string = "This is the input:1. A list element;2. Another element;3. And another one."

And I'd like the output to be a list in the following format:

list " ["This is the input:", "A list element;", "Another element;", "And another one."]

I have tried doing the following:

list = string.split('(\d+). ')

Hoping that it would split on all integers followed by a full stop and a space, but that doesn't seem to work: only a single element list is returned, indicating that none of the split criteria is found.

Anyone see what I'm doing wrong?

Upvotes: 1

Views: 55

Answers (1)

alecxe
alecxe

Reputation: 473873

You can use the re.split() method splitting by : or ; followed by one or more digits followed by a dot and a space:

>>> re.split(r"[:;]\d+\.\s", s)
['This is the input', 'A list element', 'Another element', 'And another one.']

To keep the : and ; inside the splits, you can use a positive lookbehind check:

>>> re.split(r"(?<=:|;)\d+\.\s", s)
['This is the input:', 'A list element;', 'Another element;', 'And another one.']

Upvotes: 2

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