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Regular expressions (Regex) using search module in python

Python makes regular expressions available through the re module.

For the first part in using regular expressions and matching the string
you can visit this link –> Matching the beginning of a string (Regex) Regular Expressions in python

The re.search() method takes a regular expression pattern and a string and searches for that pattern within the string. If the search is successful, search() returns a match object or None otherwise.

pattern = r"(your base)"
sentence = "All your base are belong to us."
match = re.search(pattern, sentence)
print(match.group(1))
# Output: 'your base'


match = re.search(r"(belong.*)", sentence)
print(match.group(1))
# Output: 'belong to us.'

OUTPUT:
 your base
belong to us

ILLUSTRATION EXAMPLE (using the command line)

Executed using python3
executed using python3

Searching is done anywhere in the string unlike re.match . You can also use re.findall .
You can also search at the beginning of the string (use ^ ),

match = re.search(r"123$", "zzb123")
match.group(0)
# Out: '123'
match = re.search(r"123$", "123zzb")
match is None
# Out: True

or both (use both ^ and $ ):

match = re.search(r"^123$", "123")
match.group(0)
# Out: '123'

ILLUSTRATION: refer the code below

executed using python3

Morae Q!