regex - Python Regular Expressions, find Email Domain in Address -

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i know i'm idiot, can't pull domain out of email address:

'blahblah@gmail.com'

my desired output:

'@gmail.com'

my current output:

.

(it's period character)

here's code:

import re test_string = 'blahblah@gmail.com' domain = re.search('@*?\.', test_string) print domain.group()

here's think regular expression says ('@*?.', test_string):

 ' # begin define pattern i'm looking (also tell python string)    @ # find patterns beginning @ symbol ("@")    * # find characters after ampersand    ? # find last character before period    \ # breakout (don't use next character wild card, string character)    . # find "." character    ' # end definition of pattern i'm looking (also tell python string)    , test string # run preceding search on variable "test_string," i.e., 'blahblah@gmail.com'

i'm basing off definitions here:

http://docs.activestate.com/komodo/4.4/regex-intro.html

also, searched other answers bit difficult me head around.

help appreciated, usual. thanks.

my stuff if matters:

windows 7 pro (64 bit)

python 2.6 (64 bit)

ps. stackoverflow quesiton: posts don't include new lines unless hit "return" twice in between them. example (these on different line when i'm posting):

@ - find patterns beginning @ symbol ("@") * - find characters after ampersand ? - find last character before period \ - breakout (don't use next character wild card, string character) . - find "." character , test string - run preceding search on variable "test_string," i.e., 'blahblah@gmail.com'

that's why got blank line b/w every line above. doing wrong? thx.

here's think might help

import re s = 'my name conrad, , blahblah@gmail.com email.' domain = re.search("@[\w.]+", s) print domain.group()

outputs

@gmail.com

how regex works:

@ - scan till see character

[\w.] set of characters potentially match, \w alphanumeric characters, , trailing period . adds set of characters.

+ 1 or more of previous set.

because regex matching period character , every alphanumeric after @, it'll match email domains in middle of sentences.


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