[python] testing "import xxx" and "from xxx import xxx"

1. import xxx.py

# import random module
import random

tempRandom = random.randint(0, 9)
print(tempRandom)

# lists all functions of the random module
print(dir(random))

2. from xxx import xxx.py

# import only randint function of random module
from random import randint

tempRandom = randint(0, 9)
print(tempRandom)

explanation why from x import * not importing everything:
https://stackoverflow.com/questions/19883870/python-from-x-import-not-importing-everything