import numpy as np 			#the Numpy library
import matplotlib.plplot as plt		#Matplotlib's plyplot
#must download both above

import sys			#gives access to a C-like sys library
import os			#gives access to operating system
#sys and os are part of the python library

print(sys.argv)		#prints any command line arguments
print(os.getcwd()) 	#cwd - current working directory