CODEWITHSUNDEEP
python
Mr39
Mr39

Reputation: 61

Getting either value or index number from a set

I have the following two lists:

list_1 = ['ABC', 'DEF', 'EFG']
list_2 = ['TESTABC', 'TESTDWQ', 'TESTEFG', 'TEST123', 'TEST345']

I am using the following code in order to check if anything in list_1 is actually in list_2:

check_list = set([item for item in list_1 for things in list_2 if item in things])

Now it works fine, it is able to tell me what it finds:

ABC
EFG

but it doesn't give me the whole value, which I am trying to get it to output:

TESTABC
TESTEFG

Is there a way to get the index or even better actually print out the value when it finds something?

Upvotes: 0

Views: 38

Answers (2)

mad_
mad_

Reputation: 8273

Just replace item with things

set([things for item in list_1 for things in list_2 if item in things])

To reduce it to one loop

import re
[i for i in list_2 if re.match("\w*("+'|'.join(list_1)+")$",i)]

Upvotes: 1

Andrej Kesely
Andrej Kesely

Reputation: 195623

My take on problem, using re:

l1 = ['ABC', 'DEF', 'EFG']
l2 = '''TESTABC
TESTDWQ
TESTEFG
TEST123
TEST345'''

import re

s = re.findall('|'.join(f'(?:^.*{i}.*)' for i in l1), l2, flags=re.M)
print(s)

Prints:

['TESTABC', 'TESTEFG']

Upvotes: 0

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