re.regex.fullmatch()

regex.fullmatch(string[, pos[, endpos]])

If the whole string matches this regular expression, return a corresponding match object. Return None if the string does not match the pattern; note that this is different from a zero-length match.

The optional pos and endpos parameters have the same meaning as for the search() method.

>>> pattern = re.compile("o[gh]")
>>> pattern.fullmatch("dog")      # No match as "o" is not at the start of "dog".
>>> pattern.fullmatch("ogre")     # No match as not the full string matches.
>>> pattern.fullmatch("doggie", 1, 3)   # Matches within given limits.
<_sre.SRE_Match object; span=(1, 3), match='og'>