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Python Regular Expressions in Python Introduction to Regular Expressions Groups

Posted by Ammar Fatihallah
Ammar Fatihallah
7,417 Points

Got no output

While going through the video i tried to do write the same code as the instructor wrote. but as i ran the program, i got an empty tuple. i tried checking the code but couldn't see any difference. here's my code:

print(re.findall(r'''
                 ([-\w ]+, \s[-\w ]+)\t # names
                 ([-\w\d.+]+@[-\w\d.]\t) # emails
                 (\(?\d{3}\)?-?\s?\d{3}-\d{4})\t # phones
                 ([\w\s]+,\s[\w\s]+)\t # job and company
                 (@[\w\d]+) # Twitter
                 ''', data, re.X))

2 Answers

Alx Ki
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Alx Ki
Python Web Development Techdegree Graduate 14,822 Points
Alx Ki
.a{fill-rule:evenodd;}techdegree seal-36
Alx Ki
Python Web Development Techdegree Graduate 14,822 Points

HI, Ammar Fatihallah ! Try this:

print(re.findall(r'''
                 ^([-\w ]*, \s[-\w ]+)\t # names
                 ([-\w\d.+]+@[-\w\d.]+)\t # emails
                 (\(?\d{3}\)?-?\s?\d{3}-\d{4})?\t # phones
                 ([\w\s]+,\s[\w\s.]+)\t? # job and company
                 (@[\w\d]+)?$ # Twitter
''', data, re.X|re.M))
Ammar Fatihallah
Ammar Fatihallah
7,417 Points

can you please tell me why code didn't work ? Was it a typo ?

Alx Ki
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.a{fill-rule:evenodd;}techdegree seal-36
Alx Ki
Python Web Development Techdegree Graduate 14,822 Points
Alx Ki
.a{fill-rule:evenodd;}techdegree seal-36
Alx Ki
Python Web Development Techdegree Graduate 14,822 Points

Ammar Fatihallah , main problems:

  • ^ and $ for start and end of each string and re.M for multiline.
  • in email regex closing parenthese is after \t, which is tab after email.
Daesy Stephens
Daesy Stephens
4,590 Points
Daesy Stephens
Daesy Stephens
4,590 Points

change instead re.findall to re.search