python how can warn users to not use decimals code example

Example 1: give answer in 6 decimal python

print("{:.6f}".format(variable_name))

Example 2: How to solve not in base 10 in python when using decimals

Example = float(input("Question?"))
Example_2 = float(input("Question2?"))
Awnser_1 = float(Example) * float(Example_2)
print = Awnser_1