Challenge: Positional Arguments
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Implement the register_user function that checks the user's age, adds their details to a database (users_db), and returns a success or failure message.
- Define the function
register_userthat takes parametersusername,email, andage. - Inside the function
register_user, check if age is less than 18. If it is, return the message"Registration failed: age must be 18 or older." - Create a dictionary user with the keys
username,email, andage, and assign the corresponding values. - Add the user dictionary to the
users_dblist using the appropriate method. - If everything is successful, return the message
"User {username} registered successfully!", where{username}is the actual username. - Call the
register_userfunction with example parameters for a user, either by passing arguments directly or as a dictionary.
Løsning
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users_db = []
def register_user(username, email, age):
if age < 18:
return "Registration failed: age must be 18 or older."
user = {"username": username, "email": email, "age": age}
users_db.append(user)
return f"User {username} registered successfully!"
# Pass the parameters in any way to register a user
result1 = register_user(username="Alice", email="alice@example.com", age=22)
# Testing the result
print(result1)
print(users_db) # List of registered users
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Seksjon 2. Kapittel 2
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users_db = []
def register_user(___):
if ___:
___ "Registration failed: age must be 18 or older."
user = {"username": ___, "email": ___, "age": ___}
users_db.___(___)
___ f"User {username} registered successfully!"
# Pass the parameters in any way to register a user
result1 = register_user(___)
# Testing the result
print(result1)
print(users_db) # List of registered users
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