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Python Regular Expressions in Python Introduction to Regular Expressions Players Dictionary and Class

Posted by Karen Shumate
Karen Shumate
13,579 Points

Create a variable named players that is an re.search() or re.match()to capture three groups: last_name, first_name, and

Tell me what I am doing wrong.

Thanks,

players.py 
import re

string = '''Love, Kenneth: 20
Chalkley, Andrew: 25
McFarland, Dave: 10
Kesten, Joy: 22
Stewart Pinchback, Pinckney Benton: 18'''

players = (re.search(r'''
    (?P<name>(?P<last>[\w ]+, \s(?P<first>[\w ]+)
    :\s
    (?P<score>[\d+]
    ''', string, re.X|re.MULTILINE)

2 Answers

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

I see a few issues:

  • there's a stray unmatched open parenthesis before "re.search"
  • there's an unneeded and incomplete (no closing parenthesis) group for "name"
  • the group for "last" should be for "last_name" instead
  • the group for "first" should be for "first_name" instead
  • the groups for "last" and "score" are both missing the closing parenthesis
  • the regex for "score" captures only a single digit or plus-sign ("[\d+]")
  • you may have intended to leave off the character class brackets ("\d+")
Karen Shumate
Karen Shumate
13,579 Points

I did the changes but it is only pulling Kenneth Love data.

players = re.search(r''' (?P<last_name>[\w ]+, \s(?P<first_name>[\w ]+)) :\s (?P<score>(\d+)) ''', string, re.X|re.MULTILINE)

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

Now it looks like the "last_name" group includes the "first_name" group. The closing parenthesis should be moved so each group is separate.

Also, while it doesn't hurt, the score digits don't need to be a separate unnamed group.

Karen Shumate
Karen Shumate
13,579 Points
Karen Shumate
Karen Shumate
13,579 Points

I did the changes but it is only pulling Kenneth Love data.

players = re.search(r''' (?P<last_name>[\w ]+, \s(?P<first_name>[\w ]+)) :\s (?P<score>(\d+)) ''', string, re.X|re.MULTILINE)