while I read this
that has this code
We can also do that this way:
We'd have 500000 beans, 500 jars, and 5 crates.
when I revised to pep 498
print("We can also do that this way:")
print(f"We'd have {secret_formula(start_point)} beans, {secret_formula(start_point)} jars, and {secret_formula(start_point)} crates.")
it print this
We can also do that this way:
We'd have (500000, 500, 5) beans, (500000, 500, 5) jars, and (500000, 500, 5) crates.
I see you are following LPTHW (Learn Python the Hard Way) tutorial, which I strongly suggest you pick up a different tutorial, as the current one you have has some very interesting opinions and some other issues.
Back to your question: you need to unpack the secret_formula() call to be:
b, j, c = secret_formula(start_point)
print(f"We'd have {b} beans, {j} jars, and {c} crates.")
f-strings are basically just placing the variable in the string to call it and since the secret_formula() returns a tuple, when you fstring just calling the function, it will return and print the tuple.
.format() like this: print(f'{x:_^11}')
print("We'd have {} beans, {} jars, and {} crates.".format(*secret_formula(start_point)))