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# Base

The tool to check the availability or syntax of domain, IP or URL.

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Provides the base of all checker.

Author: Nissar Chababy, @funilrys, contactTATAfunilrysTODTODcom

Special thanks: https://pyfunceble.github.io/#/special-thanks

Contributors: https://pyfunceble.github.io/#/contributors

Project link: https://github.com/funilrys/PyFunceble

Project documentation: https://docs.pyfunceble.com

Project homepage: https://pyfunceble.github.io/

License: ::

    Copyright 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2025 Nissar Chababy

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        https://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

## `NetInfoBase`

Provides the base of network information classes.

Source code in `PyFunceble/query/netinfo/base.py`

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    class NetInfoBase:
        """
        Provides the base of network information classes.
        """

        _subject: Optional[str] = None
        base: Optional[str] = None

        def __init__(self, subject: Optional[str] = None) -> None:
            if subject is not None:
                self.subject = subject

        def ensure_subject_is_given(func):  # pylint: disable=no-self-argument
            """
            Ensures that the subject is given before running the decorated method.

            :raise TypeError:
                If the subject is not a string.
            """

            @functools.wraps(func)
            def wrapper(self, *args, **kwargs):
                if not isinstance(self.subject, str):
                    raise TypeError(
                        f"<self.subject> should be {str}, {type(self.subject)} given."
                    )

                return func(self, *args, **kwargs)  # pylint: disable=not-callable

            return wrapper

        @property
        def subject(self) -> Optional[str]:
            """
            Provides the current state of the :code:`_subject` attribute.
            """

            return self._subject

        @subject.setter
        def subject(self, value: str) -> None:
            """
            Sets the subject to work with.

            :param value:
                The subject to set.

            :raise TypeError:
                When the given :code:`value` is not a :py:class:`str`.
            :raise ValueError:
                When the given :code:`value` is empty.
            """

            if not isinstance(value, str):
                raise TypeError(f"<value> should be {str}, {type(value)} given.")

            if not value:
                raise ValueError("<value> should not be empty.")

            self._subject = value

        def set_subject(self, value: str) -> "NetInfoBase":
            """
            Sets the subject to work with.

            :param value:
                The subject to set.
            """

            self.subject = value

            return self

        @ensure_subject_is_given
        def get_info(self) -> Any:
            """
            Provides the wanted network information.
            """

            raise NotImplementedError("Subclasses must implement.")

### `subject` `property` `writable`

Provides the current state of the :code:`_subject` attribute.

### `ensure_subject_is_given(func)`

Ensures that the subject is given before running the decorated method.

Raises:

Type | Description
--- | ---
`TypeError` | If the subject is not a string.

Source code in `PyFunceble/query/netinfo/base.py`

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    def ensure_subject_is_given(func):  # pylint: disable=no-self-argument
        """
        Ensures that the subject is given before running the decorated method.

        :raise TypeError:
            If the subject is not a string.
        """

        @functools.wraps(func)
        def wrapper(self, *args, **kwargs):
            if not isinstance(self.subject, str):
                raise TypeError(
                    f"<self.subject> should be {str}, {type(self.subject)} given."
                )

            return func(self, *args, **kwargs)  # pylint: disable=not-callable

        return wrapper

### `get_info()`

Provides the wanted network information.

Source code in `PyFunceble/query/netinfo/base.py`

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    @ensure_subject_is_given
    def get_info(self) -> Any:
        """
        Provides the wanted network information.
        """

        raise NotImplementedError("Subclasses must implement.")

### `set_subject(value)`

Sets the subject to work with.

Parameters:

Name | Type | Description | Default
--- | --- | --- | ---
`value` | `str` | The subject to set. | required

Source code in `PyFunceble/query/netinfo/base.py`

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    def set_subject(self, value: str) -> "NetInfoBase":
        """
        Sets the subject to work with.

        :param value:
            The subject to set.
        """

        self.subject = value

        return self