PYTHON

Python RegEx Findall – re.findall()

# A Python program to demonstrate working of findall()
import re

# A sample text string where regular expression is searched.
string = """Todays date is 27 , month is 05 and year is 2022"""

# A sample regular expression to find digits.
regex = 'd+'

match = re.findall(regex, string)
print(match)

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 

  match = re.search(r'...c', 'aabbcc') # found, match.group() == "abbc"

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

Python re.findall()

# Program to extract numbers from a string

import re

string = 'hello 12 hi 89. Howdy 34'
pattern = 'd+'

result = re.findall(pattern, string) 
print(result)

# Output: ['12', '89', '34']