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Python

William Higgins
William Higgins
5,904 Points

For the contacts code challenge, my code is getting nowhere.

Here is my code.

string = '''Love, Kenneth, kenneth+challenge@teamtreehouse.com, 555-555-5555, @kennethlove
Chalkley, Andrew, andrew@teamtreehouse.co.uk, 555-555-5556, @chalkers
McFarland, Dave, dave.mcfarland@teamtreehouse.com, 555-555-5557, @davemcfarland
Kesten, Joy, joy@teamtreehouse.com, 555-555-5558, @joykesten'''

#print(string)
contacts = re.search(r'''
    ^(?P<name>[-\w ]+,\s[-\w ]+),\s                    # last and first names
    (?P<email>[-\w\d.+]+@[-\w\d.]+),\s         # email
    (?P<phone>\d{3}-\d{3}-\d{4}),\s  # phone
    (?P<twit>@[\w\d]+)$                                 #twitter
''', string, re.X | re.M)

print(contacts)
print(contacts.groupdicts())

The challenge is to get just the email and phone. I could not do that so I added the name and twit groups, but that does not run either.

[MOD: added ```python formatting -cf]

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 67,989 Points

you are very close. For Task 1 of 2, you don't need to match the entire line. The solution asks only for the and the email. commenting out a bit of your regex passes Task 1 of the challenge:

contacts = re.search(r'''
    # no name ^(?P<name>[-\w ]+,\s[-\w ]+),\s                    # last and first names
    (?P<email>[-\w\d.+]+@[-\w\d.]+),\s         # email
    (?P<phone>\d{3}-\d{3}-\d{4}),\s  # phone
    # no tweet (?P<twit>@[\w\d]+)$                                 #twitter
''', string, re.X | re.M)

For Task 2 of 2, I changed the commented lines of your regex:

contacts = re.search(r'''
    # no name ^(?P<name>[-\w ]+,\s[-\w ]+),\s                    # last and first names
    # no email (?P<email>[-\w\d.+]+@[-\w\d.]+),\s         # email
    #  no phone (?P<phone>\d{3}-\d{3}-\d{4}),\s  # phone
    (?P<twit>@[\w\d]+)$                                 #twitter
''', string, re.X | re.M)

You clearly get regex syntax. the mistake is in over searching for the whole string.

Remember, when using match(), the whole pattern must match, with search() only a portion must match. However, when you use search() and use the beginning anchor "^" and the ending anchor "$", you are effectively doing a whole string "match".