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import re
def fun(s):
# return True if s is a valid email, else return False
pattern = r'^[a-zA-Z0-9_-]+@[a-zA-Z0-9]+.[a-zA-Z]{1,3}$'
if (re.match(pattern,s)):
return True
return False
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Validating Email Addresses With a Filter
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import re def fun(s): # return True if s is a valid email, else return False pattern = r'^[a-zA-Z0-9_-]+@[a-zA-Z0-9]+.[a-zA-Z]{1,3}$' if (re.match(pattern,s)): return True return False