tkinter.filedialog open file and savefile methods . How to choose?

Question

tkinter.filedialog ...

asksaveasfile() vs asksaveasfilename()

askopenfile() vs askopenfilename()

when would I use one vs the other?

Answer 1

asksaveasfilename() and askopenfilename() return only the path to the selected file as a str object. On the other hand, askopenfile() and asksaveasfile() return an actual file-like object (technically, an object of type _io.TextIOWrapper) which you can use to read from or write to later on. For instance:

with tkinter.filedialog.askopenfile() as f:
    contents = f.read()
    print(contents)