attempted relative import with no known parent package

Package:

torch

50580

Exception Class:

ImportError

Raise code

e TypeError("module name must be str, not {}".format(type(name)))
    if level < 0:
        raise ValueError("level must be >= 0")
    if level > 0:
        if not isinstance(package, str):
            raise TypeError("__package__ not set to a string")
        elif not package:
            raise ImportError(
                "attempted relative import with no known parent " "package"
            )
    if not name and level == 0:
        raise ValueError("Empty module name")


def _calc___package__(globals):
    """Calcu """

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Links to the raise (1)

https://github.com/pytorch/pytorch/blob/e56d3b023818f54553f2dc5d30b6b7aaf6b6a325/torch/package/_importlib.py#L47

Ways to fix

This is very easy way to fix this problem is -

Step 1 : creating setup file -

from setuptools import setup, find_packages

setup(name = 'package_name', packages = find_packages())

step 2: Run this - python setup.py install

It will create package into site_packages and make your custom package global.

Get complete detail here

Feb 28, 2022

scien.abhishek 502

The exception is thrown when importing a module with relative import(start with a dot).

Relative import is used to import a package from the same level where you are.

project/
├ main.py
├ mylib/
├ __init__.py
│ ├ module1.py
│ └ module2.py

For example, you have file structures like this.

inside module1.py, you could have from . import module2, because here the . stands for mylib.

Each file (folder) has its parent. So relative import helps us to call parents of files easily. But when we trying to call a parent model which it doesn't have a parent, we will get an error.

Error code: