import re
def validate_password(password):
# At least 8 characters long
# Contains at least one uppercase letter, one lowercase letter, one digit, and one special character
# Does not contain three consecutive identical characters
pattern = r'^(?!.*(\w)\1{2,})(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[!@#$%^&*()_+{}\[\]:;<>,.?~\\/-]).{8,}$'
return re.match(pattern, password) is not None
def password_strength(password):
strength = 0
checks = [
(r'.{8,}', "Length of at least 8 characters"),
(r'.*[A-Z].*', "Contains uppercase letter"),
(r'.*[a-z].*', "Contains lowercase letter"),
(r'.*\d.*', "Contains digit"),
(r'.*[!@#$%^&*()_+{}\[\]:;<>,.?~\\/-].*', "Contains special character"),
(r'^(?!.*(\w)\1{2,}).*$', "No three consecutive identical characters")
]
for pattern, description in checks:
if re.match(pattern, password):
strength += 1
print(f"âś“ {description}")
else:
print(f"âś— {description}")
return strength
passwords = ["Weak123!", "StrongP@ssw0rd", "aaa123ABC!", "Short1!", "NoDigitXYZ!"]
for password in passwords:
print(f"\nPassword: {password}")
if validate_password(password):
print("Valid password")
else:
print("Invalid password")
strength = password_strength(password)
print(f"Strength: {strength}/6")