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Title: Adding Objects to a Namespace (Video) – Real Python

Open Graph Title: Adding Objects to a Namespace – Real Python

Description: Before we wrap up this lesson, let me show you one more cool thing. Any new variables or functions that you add to adder.py will be accessible in main.py without you having to import anything new. So open the editor window for adder.py and add the…

Open Graph Description: Before we wrap up this lesson, let me show you one more cool thing. Any new variables or functions that you add to adder.py will be accessible in main.py without you having to import anything new. So open the editor window for adder.py and add the…

Opengraph URL: https://realpython.com/lessons/adding-namespace-objects/

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    "description": "Before we wrap up this lesson, let me show you one more cool thing. Any new variables or functions that you add to adder.py will be accessible in main.py without you having to import anything new. So open the editor window for adder.py and add the…",
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00:00https://realpython.com/lessons/adding-namespace-objects/#t=0.605
Before we wrap up this lesson, let me show you one more cool thing.https://realpython.com/lessons/adding-namespace-objects/#t=0.605
Any new variables or functions that you add to adder.py will be accessiblehttps://realpython.com/lessons/adding-namespace-objects/#t=4.605
in main.py without you having to import anything new.https://realpython.com/lessons/adding-namespace-objects/#t=9.525
00:13https://realpython.com/lessons/adding-namespace-objects/#t=13.525
So open the editor window for adder.py and add the following functionhttps://realpython.com/lessons/adding-namespace-objects/#t=13.525
below the function definition of add(). defhttps://realpython.com/lessons/adding-namespace-objects/#t=18.275
double(x):https://realpython.com/lessons/adding-namespace-objects/#t=21.755
and then as the function body return x + xhttps://realpython.com/lessons/adding-namespace-objects/#t=26.135
00:31https://realpython.com/lessons/adding-namespace-objects/#t=31.225
Save the adder.py file and then open the editor window for main.pyhttps://realpython.com/lessons/adding-namespace-objects/#t=31.225
and add the following code after your print() call:https://realpython.com/lessons/adding-namespace-objects/#t=35.975
double_value = adder.double()https://realpython.com/lessons/adding-namespace-objects/#t=39.995
And then you pass in value as the argument.https://realpython.com/lessons/adding-namespace-objects/#t=47.435
00:50https://realpython.com/lessons/adding-namespace-objects/#t=50.595
That’s the variable you defined two lines above.https://realpython.com/lessons/adding-namespace-objects/#t=50.595
And then in the next line, you do a print() function call forhttps://realpython.com/lessons/adding-namespace-objects/#t=54.155
double_value.https://realpython.com/lessons/adding-namespace-objects/#t=58.815
Now, save and run main.py.https://realpython.com/lessons/adding-namespace-objects/#t=60.54
01:04https://realpython.com/lessons/adding-namespace-objects/#t=64.725
When you run the module,https://realpython.com/lessons/adding-namespace-objects/#t=64.725
there is no error, and the values 4 and 8 are displayed in the interactivehttps://realpython.com/lessons/adding-namespace-objects/#t=65.745
window.https://realpython.com/lessons/adding-namespace-objects/#t=70.335
So since double() already exists in the namespace,https://realpython.com/lessons/adding-namespace-objects/#t=70.793
no NameError is raised and you can use it right away.https://realpython.com/lessons/adding-namespace-objects/#t=74.995
01:18https://realpython.com/lessons/adding-namespace-objects/#t=78.475
That’s pretty convenient.https://realpython.com/lessons/adding-namespace-objects/#t=78.475
And if you aren’t convinced yet why modules are handy,https://realpython.com/lessons/adding-namespace-objects/#t=81.065
let me show you a slide with some bold words on it.https://realpython.com/lessons/adding-namespace-objects/#t=84.865
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Understanding Namespaces 00:27 https://realpython.com/lessons/understanding-namespaces/
Accessing Objects From Inside a Module 01:02 https://realpython.com/lessons/accessing-module-objects/
Using Dot Notation for Imported Objects 00:54 https://realpython.com/lessons/dot-notation-imported-objects/
Adding Objects to a Namespace 01:29 https://realpython.com/lessons/adding-namespace-objects/
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