need code

[jefsummers]

The code is correct, no typo. Starting in Python 3.6 we have f-string functionality. See PEP for string formatting. Look at the code in the abstract section near the top.

[Larz60+]

printf ic 'C',
print(f"...") is a python f-string which is a very powerful string formatting method introduced in Python 3.6.

And about the cut-paste , you have a mistake .

As stated

windows instructions from memory, so might be slightly different.

[mmm]

To wrap it up ,
Thank you for the code , and thank you for the tips !