why does this accept any username as long as password is correct

username = input("Welcome, please enter your username.")
password = input("Please enter your password.")

if username != "tony" and password != "password123":
  print("Access Denied.")

else:
  print("Welcome to the jungle")

Answers:

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Method 1

Change the test to:

if username != "tony" or password != "password123":

or turn the whole thing around:

if username == "tony" and password == "password123":
  print("Welcome to the jungle")    
else:
  print("Access Denied.")

That (IMO) makes it more clear both the username and the password need to be correct.

Method 2

Will try to make you understand by AND gate.

So you can see ,why Access is denied only when both are incorrect

Method 3

Good news, your code is written correctly!.
Bad news, your code is not doing what you want.

Try to read your conditional out load.

Your computer: ‘if the user name is not “tony” and the password is not “password123,” I should deny access.
Everything else I should accept.’
That means, when only one of them is wrong, it is ok!

Method 4

just change the statements or change the condition AND with OR

solution1

username = input("Welcome, please enter your username.")
password = input("Please enter your password.")
if username != "tony" or password != "password123":
  print("Access Denied.")
else:
  print("Welcome to the jungle")

solution2

username = input("Welcome, please enter your username.")
password = input("Please enter your password.")
if username != "tony" and password != "password123":
   print("Welcome to the jungle")
else:
   print("Access Denied.")

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