Pass class variables onto a class on another script in Python

Question

I'm trying to use a class variable on another class in on another script, but I'm not sure how that's possible. I've seen how to use methods or functions, but not variables.

For example something like this

#old.py

class Sassy:

    bbq = "nice"

    lol = "funny"

    def DoesNothing(self):

        #this is the method's body and nothing really goes here

How can I use bbq and lol on a new script?

Is this the right way?

#new.py

from old import *

class HeySexy:

    new = Sassy()

    def ShowMeThatString(self):

        print(self.new.bbq)

I hope this is just a quick example of a class and not something you're trying to implement... — Matt
– Matt, Commented Feb 25, 2014 at 1:09

user1346477 · Accepted Answer · 2014-02-25 01:08:09Z

3

That's almost right.

Never do this:

from old import *

Instead do this:

from old import Sassy

new = Sassy()
print(new.bbq)

answered Feb 25, 2014 at 1:08

user1346477

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1 Comment

user1346477 Over a year ago

@satoru is right that since bbq is a class variable, you can access it without creating a Sassy instance.

satoru · Accepted Answer · 2014-02-25 01:08:26Z

1

Yes, and since they are class variables, you can also do Sassy.bbq.

PS: As tsroten told you, import * is considered bad practice, because it'll make it difficult to find out where an object came from once your module become larger. You can read PEP8 if you want to learn more about Python coding style.

answered Feb 25, 2014 at 1:08

satoru

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