Use decorator with same name as an instance method

Question

I have the following snippet:

from decorators import before_save class User(Model): def before_save(self): pass @before_save def meth(self): pass

It seems that when I try to decorate meth, it "uses" the instance method before_save, not the imported decorator. How can I still declare an instance method with the same name as a decorator and still be able to properly use both of them?

Shouldn't the decorator work as expected? How is it possible to refer to the before_save instance method just as before_save, without any reference to its class?

Community · Accepted Answer · 2017-05-23 11:43:22Z

3

You can try the following

import decorators # omitted @decorators.before_save def meth(self): pass

I wanted to use a one-liner but run into this.

edited May 23, 2017 at 11:43

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answered Mar 11, 2015 at 18:19

ForceBru

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3 Comments

linkyndy Over a year ago

I understand. But how come the code gets in some scope that allows the use of before_save to reference the newly defined instance method?

ForceBru Over a year ago

@AndreiHorak, sorry, I don't quite understand, could you rephrase your comment, please?

linkyndy Over a year ago

The defined instance method before_save shouldn't be called prepended with a reference to its class? This way the decorator would work as expected. Don't know how else I could ask better...:)

Rachel Sanders · Accepted Answer · 2015-03-11 18:19:47Z

You can change the import name:

from decorators import before_save as before_save_decorator class User(Model): def before_save(self): pass @before_save_decorator def meth(self): pass

That should let you use both.

ForceBru's solution is better if you need to change more than one import name, btw.

warvariuc · Accepted Answer · 2015-03-12 04:45:22Z

Or you could define before_save method after:

from decorators import before_save class User(Model): @before_save def meth(self): pass def before_save(self): pass

But this is not the best solution, because it's not obvious what's going on here, and you can forget about later.

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