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Dir : ~/var/opt/nydus/ops/attr/

Edit File: setters.py

# SPDX-License-Identifier: MIT

"""
Commonly used hooks for on_setattr.
"""

from . import _config
from .exceptions import FrozenAttributeError

def pipe(*setters):
    """
    Run all *setters* and return the return value of the last one.

.. versionadded:: 20.1.0
    """

def wrapped_pipe(instance, attrib, new_value):
        rv = new_value

for setter in setters:
            rv = setter(instance, attrib, rv)

return rv

return wrapped_pipe

def frozen(_, __, ___):
    """
    Prevent an attribute to be modified.

.. versionadded:: 20.1.0
    """
    raise FrozenAttributeError

def validate(instance, attrib, new_value):
    """
    Run *attrib*'s validator on *new_value* if it has one.

.. versionadded:: 20.1.0
    """
    if _config._run_validators is False:
        return new_value

v = attrib.validator
    if not v:
        return new_value

v(instance, attrib, new_value)

return new_value

def convert(instance, attrib, new_value):
    """
    Run *attrib*'s converter -- if it has one -- on *new_value* and return the
    result.

.. versionadded:: 20.1.0
    """
    c = attrib.converter
    if c:
        # This can be removed once we drop 3.8 and use attrs.Converter instead.
        from ._make import Converter

if not isinstance(c, Converter):
            return c(new_value)

return c(new_value, instance, attrib)

return new_value

# Sentinel for disabling class-wide *on_setattr* hooks for certain attributes.
# Sphinx's autodata stopped working, so the docstring is inlined in the API
# docs.
NO_OP = object()