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Python Regular Expressions in Python Introduction to Regular Expressions Sets

Posted by Fred Young
Fred Young
15,523 Points

Does a period need a backslash inside of square brackets?

His example: 

print(re.findall(r'[-\w\d+.]+@[-\w\d.]+', data))

Shouldn't the periods be escaped like so:

print(re.findall(r'[-\w\d+\.]+@[-\w\d\.]+', data))

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

When used as part of a character class within brackets, the period loses its special meaning and only represents a period.

Fred Young
Fred Young
15,523 Points

Thanks.