Earlier quoted context omitted.
nope it should be print(f"Howdy {x}") It's a new python 3.6 feature called f-strings/string interpolation https://docs.python.org/3.6/reference/lexical_analysis.html#... That said in python3 print is a function not a statement and requires parenthesis so he still has a typo.
I know f-strings but I still can't believe them. There are parts of Python that look like it wants programmers do low level compiler job and I can't understand why. This is one of them. Python can do %s string interpolation without some s'' s-strings so I wonder why it needs this f-string thing. Many languages can do string interpolation without having developers babysitting the interpreter. In 2016 we have the CPUs…
It has to do with backwards compatibility in syntax if they had been smart enough to introduce in python3 they could have done it without the f.