Need help with lists to continue my assignment code

[Yoriz]

Do it once to append the site url and second time to append the encrypted password.

That would not end up with a list of lists that contains lists of 2 items, the website and the password
That would create a list like this

Output:
['website1', 'encryptedpassword1', 'website2', 'encryptedpassword2']

The list should end up looking like

Output:
[['website1', 'encryptedpassword1'], ['website2', 'encryptedpassword2']]

input = samplePasswordFile.append([website, encryptedPassword])

This is the error code I am getting with it:

Error:
input = samplePasswordFile.append([website, encryptedPassword])
NameError: name 'samplePasswordFile' is not defined

The error is because samplePasswordFile is not defined as pointed out by wavic, so define it like wavic showed

samplePasswordFile = []

when it does

samplePasswordFile.append([website, encryptedPassword])

the result does not need storing in input (which is a built in function so don't use it as a variable name) because it directly alters samplePasswordFile instead of returning an altered list.