Python – Locating the position of a regex match in a string?

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You could use .find("is"), it would return position of “is” in the string

or use .start() from re

>>> re.search("is", String).start()
2

Actually its match “is” from “This“

If you need to match per word, you should use \b before and after “is”, \b is the word boundary.

>>> re.search(r"\bis\b", String).start()
5
>>>

for more info about python regular expressions, docs here

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