os.getcwd()

os is a python library that doesn't normally need to be installed and getcwd is a function (a heading that holds code only to be run when called) for eg. 

def count():{x =0; while x < 10:{x+=1;}} this will not run unless i say count(), i could also add a variable like count_to = int(input("enter num")) then def count(y):{x =0; while x < y:{x+=1;}} then count(count_to). its basically like count wants the argument y in other words count(y=count_to). warning my code uses { in place of blocks and ; in place of endings. 

the function getcwd() returns a string and needs no arguments. it returns the directory the application is being run in which may be different from where its placed. for instances if i add my .py file to a $path and open termianl then cd location and my file is in idk maybe bin then cwd()-> location. meaning if you run my direxc from terminal and you ran it from root, every file its programmed to try extract it will try extract potentially causing issues.