﻿ Python program to check password strength

# Python Cyber Security - Check password strength

## Python Cyber Security: Exercise-3 with Solution

Write a Python program to check if a password meets the following criteria:

At least 8 characters long and

Contains at least one uppercase letter, one lowercase letter, one digit, and one special character (!, @, #, \$, %, or &)

If the password meets the criteria, print a message that says "Valid Password." If it doesn't meet the criteria, print a message that says "Password does not meet requirements."

Sample Solution:

Python Code:

``````# Solution to Exercise 3
import re

def validate_password(password):
# Check if the password has at least 8 characters
if len(password) < 8:
return False

# Check if the password contains at least one uppercase letter
if not re.search(r'[A-Z]', password):
return False

# Check if the password contains at least one lowercase letter
if not re.search(r'[a-z]', password):
return False

# Check if the password contains at least one digit
if not re.search(r'\d', password):
return False

# Check if the password contains at least one special character
if not re.search(r'[[email protected]#\$%^&*(),.?":{}|<>]', password):
return False

# If all the conditions are met, the password is valid
return True

password = input("Input your password: ")
is_valid = validate_password(password)

if is_valid:
print("Valid Password.")
else:
print("Password does not meet requirements.")
```
```

Sample Output:

```Input your password:  Aji1#der
Valid Password.

Input your password:  A123d\$%h
Valid Password.

Input your password:  A12&ki1
Password does not meet requirements.

Input your password:  KI342\$&H
Password does not meet requirements.
```

Flowchart:

Python Code Editor:

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## Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

```def tips_map_values(obj, fn):
ret = {}
for key in obj.keys():
ret[key] = fn(obj[key])
return ret
users = {
'Owen': { 'user': 'Owen', 'age': 29 },
'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}
```

Output:

```{'Owen': 29, 'Eddie': 15}
```

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