Way of learning python: computing

1. Calculate the square

Power DEF (X, n-): 
    S =. 1 
    the while n-> 0: 
        n-n-= -. 1 
        S * = S X 
    return S 

Print (Power (5,2)) 
Print (Power (5,3)) 

2. calculate 10 within the square

= G (X * X for X in Range (10)) 
for I in G: 
    Print (I) 

3. calculates an absolute value

def my_abs(x):
    if x >= 0:
        return x
    else:
        return -x

print(my_abs(-9))

from def_01 import my_abs

print(my_abs(-9))