Lecture 4

# case 1: import module as shorthand
import dio as d
d.a()
def a():
    print('I am from function a in main.py')
a()
print(d.x)
# case 2 : from module import* , import everything except_variable
from tria import *
a()
print(x)
# case 3 : from module import function_names and variablees
from tria import a,x,_x
a()
print (x,_x)
from tria import b,y
b()
print(y)