Round up a number to specified digits

Write a python function to round up a number to specified digits.

Expected output:

Original Number: 123.01247

124

123.1

123.02

123.013

import math

def roundup(a, digits=0):
    n = 10**-digits
    return round(math.ceil(a / n) * n, digits)

# test
x = 123.01247

print("Original  Number: ",x)  # 123.01247
print(roundup(x, 0))           # 124
print(roundup(x, 1))           # 123.1
print(roundup(x, 2))           # 123.02
print(roundup(x, 3))           # 123.013

See also

https://www.w3resource.com/python-exercises/math/python-math-exercise-69.php