import command does not give the expected result when executed second time

Question

I have been trying to execute the below code snippet in python 3.6 IDLE by executing the below command, it works for the first time and displays the output

import circle

>>> import circle
Circumference of the circle:  21.99113
Area of the circle:  153.93791
>>> import circle

circle.py:

PI = 3.14159
r = 7
print('Circumference of the circle: ', 2 * PI * r)
print('Area of the circle: ', PI * r * r)

Expected: The output of the file should always be displayed when i import the. file

Actual: It works for the first time but not again.

Answer 1

Calling import a second time doesn't do what you expect. This is to prevent initialization code such as yours being executed more than once when the same module is imported from different places.

If you want to execute the initialization code in an imported module more than once, reload the module, as explained in this answer.