validatingEmail.py

import email.utils as eu
num = int(raw_input(""))
lst=[]

for i in range(num):
    f  = raw_input("")
    li = eu.parseaddr(f)
    unm = li[1].split("@")[0]
    dom = li[1].split("@")[1].split(".")[0]
    ext = li[1].split("@")[1].split(".")[1]
    if(unm.isalum()==True):
        if((dom>='a' and dom<='z') or (dom>='A' and dom<='Z')):
            if((len(ext)==1 or len(ext)==2 or len(ext)==3) and ((dom>='a' and dom<='z') or (dom>='A' and dom<='Z'))):
                lst.append(f)
    elif(('.' in unm== True) or ('-' in unm== True) or ('_' in unm== True)):
        if((dom>='a' and dom<='z') or (dom>='A' and dom<='Z')):
            if((len(ext)==1 or len(ext)==2 or len(ext)==3) and ((dom>='a' and dom<='z') or (dom>='A' and dom<='Z'))):
                lst.append(f)