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Python Regular Expressions in Python Introduction to Regular Expressions Reading Files

Sahar Nasiri
Sahar Nasiri
7,454 Points

What is that "Span"?

When it finds a match, it says the match with Span(). What is this?

See this: https://docs.python.org/2/howto/regex.html for some details.

1 Answer

.span() is a property that returns a tuple which contains the index range where the pattern is matched. So, if you get span=(0,4) that means that the pattern starts at index 0 to 3 (since its exclusive of 4).

You can access .span() like so: re.search(pattern, data).span().