Regex findall

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)

Source: docs.python.org

Python .findall

  ## Search for pattern 'bb' in string 'aabbcc'.
  ## All of the pattern must match, but it may appear anywhere.
  ## On success, match.group() is matched text.
  match = re.search(r'bb', 'aabbcc') # found, match.group() == "bb"
  match = re.search(r'cd', 'aabbcc') # not found, match == None

  ## . = any char but \n
  match = re.search(r'...c', 'aabbcc') # found, match.group() == "abbc"

  ## \d = digit char, \w = word char
  match = re.search(r'\d\d\d', 'p123g') # found, match.group() == "123"
  match = re.search(r'\w\w\w', '@@abcd!!') # found, match.group() == "abc"

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)

Similar codes

14 votes318 views2 answers
Exit py console
Python
2 votes327 views5 answers
Django documentation
Python Django
1 vote317 views1 answer
Find first date python
Python
21 votes333 views2 answers
Fast api
Python
25 votes312 views2 answers
Python convert py file to pyc
Python
2 votes327 views1 answer
Pandas find top 10 values in column
Python
0 vote313 views1 answer
Tree recursive function
Python
0 vote281 views1 answer
Python tf.maximum
Python
0 vote305 views1 answer
Random pick between given things python
Python
1 vote306 views1 answer
How to cout in python
Python