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Challenge 54: P@ssw0rd Str3ngth!

curriculum/challenges/english/blocks/daily-coding-challenges-python/68b7cadffed0e75a517da677.md

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--description--

Given a password string, return "weak", "medium", or "strong" based on the strength of the password.

A password is evaluated according to the following rules:

  • It is at least 8 characters long.
  • It contains both uppercase and lowercase letters.
  • It contains at least one number.
  • It contains at least one special character from this set: !, @, #, $, %, ^, &, or *.

Return "weak" if the password meets fewer than two of the rules. Return "medium" if the password meets 2 or 3 of the rules. Return "strong" if the password meets all 4 rules.

--hints--

check_strength("123456") should return "weak".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("123456"), "weak")`)
}})

check_strength("pass!!!") should return "weak".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("pass!!!"), "weak")`)
}})

check_strength("Qwerty") should return "weak".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("Qwerty"), "weak")`)
}})

check_strength("PASSWORD") should return "weak".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("PASSWORD"), "weak")`)
}})

check_strength("PASSWORD!") should return "medium".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("PASSWORD!"), "medium")`)
}})

check_strength("PassWord%^!") should return "medium".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("PassWord%^!"), "medium")`)
}})

check_strength("qwerty12345") should return "medium".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("qwerty12345"), "medium")`)
}})

check_strength("S3cur3P@ssw0rd") should return "strong".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("S3cur3P@ssw0rd"), "strong")`)
}})

check_strength("C0d3&Fun!") should return "strong".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(check_strength("C0d3&Fun!"), "strong")`)
}})

--seed--

--seed-contents--

py
def check_strength(password):

    return password

--solutions--

py
import re
def check_strength(password):
    rules_met = 0

    if len(password) >= 8:
        rules_met += 1
    if re.search(r'[a-z]', password) and re.search(r'[A-Z]', password):
        rules_met += 1
    if re.search(r'\d', password):
        rules_met += 1
    if re.search(r'[!@#$%^&*]', password):
        rules_met += 1

    if rules_met < 2:
        return "weak"
    elif rules_met < 4:
        return "medium"
    else:
        return "strong"