re.MatchObject.span() Method in Python – regex
re.MatchObject.span() method returns a tuple containing starting and ending index of the matched string. If group did not contribute to the match it returns(-1,-1).
Parameters: group (optional) By default this is 0.
Return: A tuple containing starting and ending index of the matched string. If group did not contribute to the match it returns(-1,-1).
AttributeError: If a matching pattern is not found then it raises AttributeError.
Consider the below example:
It’s time to understand the above program. We use a re.match() method to find a match in the given string(‘128935‘) the ‘d‘ indicates that we are searching for a numerical character and the ‘+‘ indicates that we are searching for continuous numerical characters in the given string. Note the use of ‘()‘ the parenthesis is used to define different subgroups.
Example 2: If a match object is not found then it raises AttributeError.
Traceback (most recent call last): File "/home/18a058de83529572f8d50dc9f8bbd34b.py", line 17, in print(match_object.span()) AttributeError: 'NoneType' object has no attribute 'span'
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