Password Validator in Python: Build a validatePassword() function which accepts a password as string and reports if it is a good password or not based on the following constraints:
Password Validator in Python
- must contain at least 1 special character
- must contain at least 1 numeric character
- must contain at least 1 uppercase character
- must contain at least 1 lowercase character
- must be at least 8 characters in length but not more than 12 characters
def validatePassword(enteredPassword):
containsSpecialCharacter = False
containsNumericCharacter = False
containsUppercaseCharacter = False
containsLowercaseCharacter = False
# Setting above flags to True if conditions are met
for character in enteredPassword:
if character in '!@#$%^&*()_+':
containsSpecialCharacter = True
elif character in '1234567890':
containsNumericCharacter = True
elif character in 'QWERTYUIOPASDFGHJKLZXCVBNM':
containsUppercaseCharacter = True
elif character in 'qwertyuiopasdfghjklzxcvbnm':
containsLowercaseCharacter = True
# Checking if all constraints are met
if (len(enteredPassword) >= 8 and len(enteredPassword) <= 12
and containsSpecialCharacter and containsNumericCharacter
and containsUppercaseCharacter and containsLowercaseCharacter):
print(enteredPassword, "is a good password.")
else:
print(enteredPassword, "is NOT a good password.")
enteredPassword = input("Please enter the password to be validated: ")
validatePassword(enteredPassword)
Try it here.
See also: