CODEWITHSUNDEEP
pythonregexemail
Jide Koso
Jide Koso

Reputation: 425

Python regex to remove capture email between dashes or ignore emails ending with .jpg etc

I am trying to figure out how to improve the regex to only get emails not ending with ".jpg" and to remove -- from both left and right part of the emails if any is found. Example parameter as source which is a string.

<html>
   <body>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>

</body>
</html>

The result should contain: [email protected], [email protected], [email protected] So basically, I want to see anyway to improve this function so the regex would could produce emails without -- and if possible improve the if not email[0].endswith('.png') in case i want to add more, this could look urgly.

def extract_emails(source):

    regex = re.compile(r'([\w\-\.]{1,100}@(\w[\w\-]+\.)+[\w\-]+)')
    emails = list(set(regex.findall(source.decode("utf8"))))
    all_emails = []
    for email in emails:
        if not email[0].endswith('.png') and not email[0].endswith('.jpg') \
                and not email[0].endswith('.gif') and not email[0].endswith('.rar')\
                and not email[0].endswith('.zip') and not email[0].endswith('.swf'):
            all_emails.append(email[0].lower())

    return list(set(all_emails))

Upvotes: 2

Views: 342

Answers (3)

Learner
Learner

Reputation: 5302

I think top level domains are few so you can use alternation

s="""<html>
   <body>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>

</body>
</html>"""
print re.findall(r"-*([\w\.]{1,100}@\w[\w\-]+\.+com|biz|us|bd)-*",s)

['[email protected]', '[email protected]', '[email protected]']

see DEMO

or try \w+@\w+\.(?!jpg|png)\w+\.*\w*

s="""<html>
   <body>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>

</body>
</html>"""
print re.findall(r"\w+@\w+\.(?!jpg|png)\w+\.*\w*",s)

It is very hard to set constant regex for email verification- Details for email validation go at Using a regular expression to validate an email address it has 69 answers.

Upvotes: 2

Sede
Sede

Reputation: 61293

The best way to do this is using html parser like BeautifulSoup

In [37]: from bs4 import BeautifulSoup

In [38]: soup = BeautifulSoup('''<html>
   ....:    <body>
   ....:    <p>[email protected]</p>
   ....:    <p>[email protected]</p>
   ....:    <p>[email protected]</p>
   ....:    <p>[email protected]</p>
   ....:
   ....: </body>
   ....: </html>''', 'lxml')

In [39]: [email.strip('-') for email in soup.stripped_strings if not email.endswith('.jpg')]
Out[39]: ['[email protected]', '[email protected]', '[email protected]']

Upvotes: 0

vks
vks

Reputation: 67988

x="""<html>
   <body>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>
   <p>[email protected]</p>

</body>
</html>"""
print re.findall(r"-*([\w\-\.]{1,100}@(?:\w[\w\-]+\.)+(?!jpg)[\w]+)-*",x)

Output:['[email protected]', '[email protected]', '[email protected]']

Upvotes: 1

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