Classes and Functions - General Questions

[John Salerno]

John Salerno wrote:
> Setash wrote:
> 
>> And have class2 inherit class1 without any import statements, or need
>> it be imported first?
>> Or need class1 and class2 be both declared in the same .py file if
>> there is inheritance?
> 
> If the classes are in the same module, you don't need to do any 
> importing or qualification. If they are in separate modules, you need to 
> import the necessary module(s) and then you can use its contents.

Quick clarification: even if you import a module, you still need to 
qualify a call to its attributes:

----
import sys

print sys.version   #not 'print version'
----


But you can use the 'from <module> import <attribute>' format to avoid this:


----
from sys import version

print version
----

But this is very bad to do. The recommendation that I like is to only 
use from/import when you want a module from a package, not when you want 
classes, methods, etc. from a module.