How to create a .data file?

Question

Python

I'm learning python from the book "A Byte Python".
There is such a program

import pickle

shoplistfile = "shoplist.data"
shoplist = ["яблоки", "манго", "морковь"]

f = open(shoplistfile)
pickle.dump(shoplist, f)
f.close()

del shoplist

f = open(shoplistfile, "rb")
storedlist = pickle.load(f)
print(storedlist)

When starting the program, it gives an error, supposedly there is no shoplist.data file.
How to create a similar file on Windows 10?

Answer 1

Try f = open(shoplistfile, "w")

Answer 2

f = open(shoplistfile, "wb")
Wasn't "wb" in the textbook?