Something from string in list python

I have a list with keywords id = ['pop','ppp','cre'] and now I am going through a bunch of files/large strings and if any of these keywords are i开发者_如何学JAVAn these files than I have to be able to do something...

like:

id = ['pop','ppp','cre']
if id in dataset:
         print id

But i think now all of these 3 or later maybe more have to be in the dataset and not just only one.

You can use all to make sure all the values in your id list are in the dataset:

id = ['pop', 'ppp', 'cre']
if all(i in dataset for i in id):
    print id

Since you mentioned that you need to check any word within dataset then I think any() built-in method will help:

if any(word in dataset for word in id):
    # do something

Or:

if [word for word in id if word in dataset]:
    # do something

And:

if filter(lambda word: word in dataset, id):
    # do something

Your code as it stands will actually look through dataset for the entire list "['pop', 'ppp', 'cre']". Why don't you try something like this:

for item in id:
    if item in dataset:
        print id

Edit:

This will probably be more efficient:

for item in dataset:
    if item in id:
        print id

Assuming |dataset| > |id| and you break out of the loop when you find a match.