[Python] "import" and "from import" for same module

I find myself mixing both import x and from x import y forms for the same module, depending how often a particular object is used and whether it is clear which modules it comes from.

For example I might write the following:

import dataclasses
from dataclasses import dataclass
import json

@dataclass
class Point3D:
x: int
y: int
z: int

def to_json(self) -> str:
return json.dumps(dataclasses.as_dict(self))


I want json.dumps and dataclasses.as_dict to be called with their module name to avoid ambiguity e.g. with pickle.dumps and sympy.as_dict. But @dataclass clearly comes from dataclasses, making @dataclasses.dataclass redundant.

Is there a way to write:

import dataclasses
from dataclasses import dataclass


more cleanly, on a single line (semicolon doesn't count)? I would imagine something like from dataclasses import self, dataclass.

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