Confused with module and .py files

[Iyer, Prasad C]

Actually I am bit confused between the modules and .py file
How do I differentiate between the 2.

For example
I have a file import1.py, import2.py file
Which has few functions and classes
And if I have a class with same name "BaseClass" in both the file

How would I use it if I declare it as given below in my 3rd class

from import1.py import *
from import2.py import *





regards
prasad chandrasekaran










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[Roel Schroeven]

Actually I am bit confused between the modules and .py file
How do I differentiate between the 2.

For example
I have a file import1.py, import2.py file
Which has few functions and classes
And if I have a class with same name "BaseClass" in both the file

How would I use it if I declare it as given below in my 3rd class

from import1.py import *
from import2.py import *

Name conflicts like that are a good reason not to use from ... import *,
but instead:

import import1
import import2

bc1 = import1.BaseClass()
bc2 = import2.BaseClass()

(Note: don't include the extension .py in the import statements)

Namespaces are great for preventing name conflicts; don't circumtvent
them by blindly importing everything into the same namespace. As the Zen
of Python says: "Namespaces are one honking great idea -- let's do more
of those!"

 

[Steven D'Aprano]

Actually I am bit confused between the modules and .py file
How do I differentiate between the 2.

For example
I have a file import1.py, import2.py file

Which has few functions and classes
And if I have a class with same name "BaseClass" in both the file

How would I use it if I declare it as given below in my 3rd class

from import1.py import *
from import2.py import *

You can't, because the BaseClass from the second import over-writes the
BaseClass from the first.

In general, "from module import *" is a bad idea, because you don't know
what names you are importing: you can have name collisions, where a name
in one module clashes with a name in your code, or another module. That is
what is happening with your code.

The way to prevent that is to use Python's namespaces: instead of "from
module import name", use "import module", and then call module.name.