how to run a python script

1exec(open('file.py').read())

1# Save the script in a file with .py extension
2# run the script using the below command
3python fileName.py

1command = "print('Hi World')
2exec(command)

1# press [windows] + [R] (on windows only)
2# use the command : cd/the_way_of_your_program
3# and now use this command :
4
5py the_name_of_your_program.py 
6
7# don't forget to write the extension (py for python) 
8# at the end of your program name

1>>> print('Hello World!')
2
3>>> 2 + 5
47
5>>> print('Welcome to Real Python!')
6Welcome to Real Python!
7

1C:\Python27\python.exe C:\Users\Username\Desktop\my_python_script.py
2