Overloading = operator in Python [duplicate]

Question

I found out yesterday that it is possible to override operators in python, so after a bit of googling i found out how, but i could not find any way of overloading the "=" sign. There is __set__() but as i understand it, it overloads the sign for attributes in the object, and not for the object itself.

What i want to accomplish is this:

F = Foo(1)
G = Foo(2)
F = G #overloaded =

So is there a way of overloading "=" for an object in python? (and what is that function called)

No. You cannot overload the assignment operator in Python. See docs.python.org/3/reference/datamodel.html#special-method-names — khelwood
– khelwood, Commented Nov 22, 2017 at 8:42
You want to overload = (assignment) not == (equality comparison)? — Klaus D.
– Klaus D., Commented Nov 22, 2017 at 8:44
In some cases a property with a setter could do that. But it only works on object attributes not on "free" variables. There are other options you might want to consider: setattr(), a dictionary, the __dict__ attribute… — Klaus D.
– Klaus D., Commented Nov 22, 2017 at 8:47
Yes, to basically call a c method when assigning to a different object — weirddan
– weirddan, Commented Nov 22, 2017 at 8:48

hallazzang · Accepted Answer · 2017-11-22 08:42:32Z

1

You cannot overload =(assign) operator.

answered Nov 22, 2017 at 8:42

hallazzang

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1 Comment

weirddan Over a year ago

Ok, Thanks for the reply!

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