CODEWITHSUNDEEP
pythonlistsubstring
Jonathan C Lee
Jonathan C Lee

Reputation: 225

Python list of substrings in list of strings

I'd like to find if a list of substrings is contained in a list. For example, I have:

    string_list = ['item1', 'item2', 'subject3', 'subject4']

and list of substrings

    substrings = ['item', 'subject']

I'd like to find if 'item' or 'subject' are included in any item of string_list. Individually, I would do something like:

    any('item' in x for x in string_list)

This works for one substring but I would like to find a pretty way of searching for both strings in the list of substrings.

Upvotes: 8

Views: 6673

Answers (3)

roman
roman

Reputation: 117380

any(y in x for x in string_list for y in substrings)

Upvotes: 7

Ajax1234
Ajax1234

Reputation: 71451

You can try this:

string_list = ['item1', 'item2', 'subject3', 'subject4']

substrings = ['item', 'subject']

any(any(b in i for b in substrings) for i in string_list)

Output:

True

Upvotes: 1

Moses Koledoye
Moses Koledoye

Reputation: 78556

Since the substrings are actually at the start, you can use str.startswith which can take a tuple of prefixes:

any(x.startswith(('item', 'subject')) for x in string_list)

Upvotes: 2

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