How get all matches using str.contains in python regex?

Question

I have a data frame, in which I need to find all the possible matches rows which match with terms. My code is

texts = [\'foo abc\', \'foobar xyz\',         


        

Answer 1

Instead of using the regex pattern for checking the presence of terms,

#create pattern
p = re.compile(pat)

#search for pattern in the column
results = [p.findall(text) for text in df.Match_text.tolist()]

Try using a simple lookup of terms in the text like this.

#search for each term in the column
results = [[term for term in terms if term in text] for text in df.Match_text.tolist()]

Output for the above looks like this,

    Match_text  results
0   foo abc [foo]
3   baz 45  [baz]
6   foo baz [foo, baz, foo baz]

NOTE : There is a time complexity associated to this method.