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

Posted by MUZ140057 Dumisani Nyamusa
MUZ140057 Dumisani Nyamusa
8,029 Points

STAGE 1 REGULAR EXPRESSION

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

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<last_name>\w),\s(?Pfirst_name>\w+):\s(?P<score>\dt',string,re.M)

4 Answers

KAZUYA NAKAJIMA
KAZUYA NAKAJIMA
8,851 Points
KAZUYA NAKAJIMA
KAZUYA NAKAJIMA
8,851 Points

Now I solved it with above help.

  • [] for group of character
  • use re.X and use.M
  • "Stewart Pinchback", "Pinckney Benton" contains space in both first and last name
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<last_name>[\w ]*)
  ,\s
  (?P<first_name>[\w ]*)
  :\s
  (?P<score>[\d]*)
''', string, re.X | re.M)
Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Some of the last names and first names aren't single words. Your pattern is only looking for single characters for names, even.

michaelangelo owildeberry
michaelangelo owildeberry
18,172 Points
michaelangelo owildeberry
michaelangelo owildeberry
18,172 Points

TypeError: expected string or buffer..... does this mean I have to use str? ....

players = re.search(r'''
  (?P<name>[-\w ]+,\s[-\w ]+)\t   #  last and first names
  (?P<score>\(?\d{2}\)?)     # score
''', re.MULTILINE)

print(players)
Kenneth Love
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

There aren't any tabs (\t) for you to catch.

And you didn't give a string to match the pattern against to the search() function.

re.search([pattern], [string], [flags])

Aidan Donohue
PLUS
Aidan Donohue
Courses Plus Student 5,660 Points
Aidan Donohue
Aidan Donohue
Courses Plus Student 5,660 Points 
import re

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

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

I think you need to include the separating characters (commas, spaces, colons) outside of your named groups