Function make_class

src/attr/_make.py:3206–3306

r""" A quick way to create a new class called *name* with *attrs*. .. note:: ``make_class()`` is a thin wrapper around `attr.s`, not `attrs.define` which means that it doesn't come with some of the improved defaults. For example, if you want the same ``on_setattr``

(
    name, attrs, bases=(object,), class_body=None, **attributes_arguments
)

def make_class(
    name, attrs, bases=(object,), class_body=None, **attributes_arguments
):
    rclass="st">"""
    A quick way to create a new class called *name* with *attrs*.

    .. note::

        ``make_class()`` is a thin wrapper around `attr.s`, not `attrs.define`
        which means that it doesn&class="cm">#x27;t come with some of the improved defaults.

        For example, if you want the same ``on_setattr`` behavior as in
        `attrs.define`, you have to pass the hooks yourself: ``make_class(...,
        on_setattr=setters.pipe(setters.convert, setters.validate)``

    .. warning::

        It is *your* duty to ensure that the class name and the attribute names
        are valid identifiers. ``make_class()`` will *not* validate them for
        you.

    Args:
        name (str): The name for the new class.

        attrs (list | dict):
            A list of names or a dictionary of mappings of names to `attr.ib`\
            s / `attrs.field`\ s.

            The order is deduced from the order of the names or attributes
            inside *attrs*.  Otherwise the order of the definition of the
            attributes is used.

        bases (tuple[type, ...]): Classes that the new class will subclass.

        class_body (dict):
            An optional dictionary of class attributes for the new class.

        attributes_arguments: Passed unmodified to `attr.s`.

    Returns:
        type: A new class with *attrs*.

    .. versionadded:: 17.1.0 *bases*
    .. versionchanged:: 18.1.0 If *attrs* is ordered, the order is retained.
    .. versionchanged:: 23.2.0 *class_body*
    .. versionchanged:: 25.2.0 Class names can now be unicode.
    class="st">"""
    class="cm"># Class identifiers are converted into the normal form NFKC while parsing
    name = unicodedata.normalize(class="st">"NFKC", name)

    if isinstance(attrs, dict):
        cls_dict = attrs
    elif isinstance(attrs, (list, tuple)):
        cls_dict = {a: attrib() for a in attrs}
    else:
        msg = class="st">"attrs argument must be a dict or a list."
        raise TypeError(msg)