We can try out code, one at at time, by typing it into the Python shell. This is possible because there is a program within Python called: code example

Example 1: how to run a python script

# Save the script in a file with .py extension
# run the script using the below command
python fileName.py

Example 2: run python program from command line

# press [windows] + [R] (on windows only)
# use the command : cd/the_way_of_your_program
# and now use this command :

py the_name_of_your_program.py 

# don't forget to write the extension (py for python) 
# at the end of your program name