How do I shift the decimal place in Python?

The same way you do in math

a = 0.01;
a *= 10; // shifts decimal place right
a /= 10.; // shifts decimal place left

def move_point(number, shift, base=10):
    """
    >>> move_point(1,2)
    100
    >>> move_point(1,-2)
    0.01
    >>> move_point(1,2,2)
    4
    >>> move_point(1,-2,2)
    0.25
    """
    return number * base**shift