python file run code example

Example 1: run python file using python code

exec(open('file.py').read())

Example 2: run python.py file

# save a file in text editor with .py
# open terminal, and change directories
# run the following command:
python3 file.py

Example 3: how to run python program

move to the directory where your program lies 
open cmd 
python first_script.py(your file name)