could you please help how to run this file on command prompt

[m123]

code is as shown below, saved as ynb.py

def get_cube_root(num):
	return num ** (1. / 3)

i tried to run in command prompt

Error:
C:\Users\s\Documents>python -c get_cube_root(27)
ImportError: No module named site

C:\Users\s\Documents>python -c 'from footbar import *; print get_cube_root(27)
ImportError: No module named site

C:\Users\s\Documents>python ynb.py
ImportError: No module named site

C:\Users\s\Documents>ynb.py

C:\Users\s\Documents>python ynb.py
ImportError: No module named site

C:\Users\s\Documents>print ynb.by
Unable to initialize device PRN

any suggestion

[Larz60+]

run

pyton ynb.py

on command line from directory where file resides

[buran]

apart from all these errors that don't make sense with the code you show (e.g. ImportError: No module named site) your code will not produce any visible result - it just define a function which you don't call at all

[m123]

yes that didnot produce any result. sorry maybe wrong question

[buran]

yes that didnot produce any result. sorry maybe wrong question

so what would be the right question then?
did it run without errors and no result too?

[DeaD_EyE]

It looks to me, that your Python installation is broken.

Help on module site:

NAME
site - Append module search paths for third-party packages to sys.path.

The module site comes with Python.
Give us some details about your OS.

[m123]

64 bit ,Windows , intel core TM ,i7-6500UCPU 2.5GHz , 8GB RAM

i also installed sypder python(3.6)