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  2. Python
  3. Python Functionals
  4. Validating Email Addresses With a Filter
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Validating Email Addresses With a Filter

  • av7098668751
     + 6 comments

    check this

    def fun(s):

    # return True if s is a valid email, else return False

if ('@' not in s) or ('.' not in s) or (' ' in s):

            return False

    if s.count('@')>1:

            return False

    if s.count('.')>1:

            return False

 s=s.replace('@',' ')

 s=s.replace('.',' ')

 l=list(map(str,s.split()))

 if len(l)<3:

            return False

 for j in l[0]:

            if j.isalnum()==False and j!='_' and j!='-':

                    return False
for j in l[1]:

    if j.isalnum()==False:
        return False
if len(l[2])>3 or len(l[2])==0:
    return False
return True