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  1. Prepare
  2. Python
  3. Python Functionals
  4. Validating Email Addresses With a Filter
  5. Discussions

Validating Email Addresses With a Filter

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617 Discussions

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  • prajwalpraju_ca
     + 0 comments

    import re def fun(s): pattern = r'^[\w-]+@[a-zA-Z0-9]+.[a-zA-Z]{1,3}$' return bool(re.match(pattern, s))

  • maluisamrok
     + 0 comments
    import re
pattern =r"^[a-zA-Z0-9_%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,3}$"
def fun(s):
    # return True if s is a valid email, else return False
    return re.match(pattern, s )

  • dilajevolves
     + 0 comments
    import re
def fun(s):
    # return True if s is a valid email, else return False
    return bool(re.fullmatch(r"[\w-]+@[a-z0-9]+\.[a-z]{1,3}",s,re.I))

def filter_mail(emails):
    return list(filter(fun, emails))

if __name__ == '__main__':
    n = int(input())
    emails = []
    for _ in range(n):
        emails.append(input())

filtered_emails = filter_mail(emails)
filtered_emails.sort()
print(filtered_emails)

  • tusharvyavahare1
     + 0 comments
    return re.fullmatch(r'[a-z0-9_-]+@[a-z0-9]+\.[a-z]{1,3}',s,re.I)

  • rohitambasta_ii1
     + 0 comments

    Solution without any module e.g Regex

    def fun(s):
    
    delimitor= ['@', '.']
    for i in delimitor:
        s= s.replace(i, " ")
    s= s.split(" ")
   
    if len(s) == 3 and all([i != '' for i in s]):
        if (all(c.isalnum() or c in ('-', '_') for c in s[0])
        and s[1].isalnum() and s[2].isalpha() and len(s[2]) <= 3):
            return True
        else:
            return False
    
def filter_mail(emails):
    return list(filter(fun, emails))

if __name__ == '__main__':
    n = int(input())
    emails = []
    for _ in range(n):
        emails.append(input())

filtered_emails = filter_mail(emails)
filtered_emails.sort()
print(filtered_emails)