CODEWITHSUNDEEP
python
Pelicer
Pelicer

Reputation: 1584

Import two modules in Main file, and call methods in them from each other

I'm new to Python, but so far I know that in some languages you can "Inderectly" import a module and see it's content for a module that will be imported after that one.

For example, these modules:

main.py

ex1.py

ex2.p

And in them I have

Ex1.py

def Test1():
    print('this is a test')

Ex2.py

def Test2():
    Test1()
    print('this is another test')

Main.py

from Ex1 import Test1
from Ex2 import Test2

Test2()

In python, this will throw me a error saying that Test1()is not defined in Ex2. But since I imported Test1 before Test2 and then called a method from Test2 in Main.py (where both functions are imported), shouldn't this be allowed? I don't know if there's a way to do this, but some languages, like AutoIt, allow you to do so. I found nothing on this during research.-

Upvotes: 1

Views: 146

Answers (3)

gmds
gmds

Reputation: 19885

No, because of how Python resolves names.

In Ex2, at runtime, Test2 will look for Test1 in its own scope; in other words, for a function with the name Ex2.Test1. This can be achieved by a from Ex1 import Test1 statement.

Conversely, in main, when you execute from Ex1 import Test1, the name of the function is now main.Test1, which does not match the name of the function that Test2 is looking for.

It is possible to do that with some sys.modules magic, but I wouldn't recommend it.

Upvotes: 1

Liam Clarke
Liam Clarke

Reputation: 385

Python doesn't work like that, it isolates module namespaces to prevent awful bugs.

Upvotes: 0

Apoorv Goyal
Apoorv Goyal

Reputation: 82

First off, it should be ex1 and in your python file, so that the names of the modules are correct.

Secondly, import ex2 in ex1. This should do the trick.

Upvotes: 0

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