"import re" code example
Example 1: regex findall
import re
# regex for finding mentions in a tweet
regex = r"(?<!RT\s)@\S+"
tweet = '@tony I am so over @got and @sarah is dead to me.'
# mentions = ['@tony', '@got', '@sarah']
mentions = re.findall(regex, tweet)
Example 2: python re compile
import re
# Compile a regular expression pattern into a regular expression object, which can be used for matching using its match(), search() and other methods, described below.
prog = re.compile(pattern)
result = prog.match(string)
# is equivalent to
result = re.match(pattern, string)