How to name groups in python regular expressions

This article will explain in detail how to name groups in python regular expressions. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

1. After naming the group in the regular expression, when the group is accessed in the program, it can be accessed not only through the group number, but also through the group name.

2. Group naming is achieved by adding at the beginning of the group? P.

Example

Import re p = r'(? P\ d {3pm 4})-(? P\ d {7pr 8}) m = re.search (p '010-87654321') print (m) print (m.group ()) # returns the matching string print (m.groups ()) # gets all the group content # returns the group content print (m.group (1)) print (m.group (2)) # returns the group content print (m.group ('area_code')) print (m.group (' phone_code')) through the group name

Once a regular expression is named, it can be accessed by group number or group name.

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