Comment appeler une fonction auto-définie python dans le terminal vscode

#First, from the Terminal navigate to the folder in which the python file for the module is 
#present using 'cd'
#Second, in the terminal type 'python.exe'. then u will be greeted with the python compiler.
#in the compiler type the following code written below.

>>> from filename import *
>>> module(arg)

#in the place of 'filename' write the python file name. and in place of 'module' type your 
#self-defined module.in place of 'arg' give your argument. 
#Thats it!!
Gammageek