Question

I have the module Test.py with class test inside the module. Here is the code:

class test:

    SIZE = 100;
    tot = 0;

    def __init__(self, int1, int2):
        tot = int1 + int2;

    def getTot(self):
        return tot;

    def printIntegers(self):
        for i in range(0, 10):
            print(i);

Now, at the interpreter I try:

>>> import Test
>>> t = test(1, 2);

I get the following error:

Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    t = test(1, 2);
NameError: name 'test' is not defined

Where did I go wrong?

Answer 1

You have to access the class like so:

Test.test

If you want to access the class like you tried to before, you have two options:

from Test import *

This imports everything from the module. However, it isn’t recommended as there is a possibility that something from the module can overwrite a builtin without realising it.

You can also do:

from Test import test

This is much safer, because you know which names you are overwriting, assuming you are actually overwriting anything.