The match method of the re module
The match
method of the re
module only searches for a match with a regular expression at the beginning of a string. In the first parameter of the method, we specify the regular expression to search for, and in the second parameter, the string in which to search for it. In the third optional parameter, you can specify flags for additional regular expression settings. The method returns a Match object. If no matches are found, None
is returned.
Syntax
import re
re.match(regular expression, string, [flags bunting])
Example
Let's find all substrings with numbers:
txt = '123 456 789'
res = re.match('\d+', txt)
print(res)
Result of code execution:
<re.Match object; span=(0, 3), match='123'>
Example
Now let's make our line start with letter symbols:
txt = 'aaaa 123 456 789'
res = re.match('\d+', txt)
print(res)
Result of code execution:
None
See also
-
method
findall
of modulere
,
which returns a list of all matches in a string -
method
finditer
of modulere
,
which returns an iterator of all matches of the regular expression in the string -
method
search
of modulere
,
which looks for the first match of a regular expression in a string -
method
fullmatch
of modulere
,
which looks for all matches of a regular expression in a string -
object
Match object
of modulere
,
which contains information about matches with a regular expression