1st Version

.venv/lib/python3.10/site-packages/marshmallow/__init__.py

@@ -0,0 +1,81 @@
+from __future__ import annotations
+
+import importlib.metadata
+import typing
+
+from packaging.version import Version
+
+from marshmallow.decorators import (
+    post_dump,
+    post_load,
+    pre_dump,
+    pre_load,
+    validates,
+    validates_schema,
+)
+from marshmallow.exceptions import ValidationError
+from marshmallow.schema import Schema, SchemaOpts
+from marshmallow.utils import EXCLUDE, INCLUDE, RAISE, missing, pprint
+
+from . import fields
+
+
+def __getattr__(name: str) -> typing.Any:
+    import warnings
+
+    if name == "__version__":
+        warnings.warn(
+            "The '__version__' attribute is deprecated and will be removed in"
+            " in a future version. Use feature detection or"
+            " 'importlib.metadata.version(\"marshmallow\")' instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return importlib.metadata.version("marshmallow")
+
+    if name == "__parsed_version__":
+        warnings.warn(
+            "The '__parsed_version__' attribute is deprecated and will be removed in"
+            " in a future version. Use feature detection or"
+            " 'packaging.Version(importlib.metadata.version(\"marshmallow\"))' instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return Version(importlib.metadata.version("marshmallow"))
+
+    if name == "__version_info__":
+        warnings.warn(
+            "The '__version_info__' attribute is deprecated and will be removed in"
+            " in a future version. Use feature detection or"
+            " 'packaging.Version(importlib.metadata.version(\"marshmallow\")).release' instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        __parsed_version__ = Version(importlib.metadata.version("marshmallow"))
+        __version_info__: tuple[int, int, int] | tuple[
+            int, int, int, str, int
+        ] = __parsed_version__.release  # type: ignore[assignment]
+        if __parsed_version__.pre:
+            __version_info__ += __parsed_version__.pre  # type: ignore[assignment]
+        return __version_info__
+
+    raise AttributeError(name)
+
+
+__all__ = [
+    "EXCLUDE",
+    "INCLUDE",
+    "RAISE",
+    "Schema",
+    "SchemaOpts",
+    "fields",
+    "validates",
+    "validates_schema",
+    "pre_dump",
+    "post_dump",
+    "pre_load",
+    "post_load",
+    "pprint",
+    "ValidationError",
+    "missing",
+]

.venv/lib/python3.10/site-packages/marshmallow/base.py

@@ -0,0 +1,64 @@
+"""Abstract base classes.
+
+These are necessary to avoid circular imports between schema.py and fields.py.
+
+.. warning::
+
+    This module is treated as private API.
+    Users should not need to use this module directly.
+"""
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+
+
+class FieldABC(ABC):
+    """Abstract base class from which all Field classes inherit."""
+
+    parent = None
+    name = None
+    root = None
+
+    @abstractmethod
+    def serialize(self, attr, obj, accessor=None):
+        pass
+
+    @abstractmethod
+    def deserialize(self, value):
+        pass
+
+    @abstractmethod
+    def _serialize(self, value, attr, obj, **kwargs):
+        pass
+
+    @abstractmethod
+    def _deserialize(self, value, attr, data, **kwargs):
+        pass
+
+
+class SchemaABC(ABC):
+    """Abstract base class from which all Schemas inherit."""
+
+    @abstractmethod
+    def dump(self, obj, *, many: bool | None = None):
+        pass
+
+    @abstractmethod
+    def dumps(self, obj, *, many: bool | None = None):
+        pass
+
+    @abstractmethod
+    def load(self, data, *, many: bool | None = None, partial=None, unknown=None):
+        pass
+
+    @abstractmethod
+    def loads(
+        self,
+        json_data,
+        *,
+        many: bool | None = None,
+        partial=None,
+        unknown=None,
+        **kwargs,
+    ):
+        pass

.venv/lib/python3.10/site-packages/marshmallow/class_registry.py

@@ -0,0 +1,92 @@
+"""A registry of :class:`Schema <marshmallow.Schema>` classes. This allows for string
+lookup of schemas, which may be used with
+class:`fields.Nested <marshmallow.fields.Nested>`.
+
+.. warning::
+
+    This module is treated as private API.
+    Users should not need to use this module directly.
+"""
+from __future__ import annotations
+
+import typing
+
+from marshmallow.exceptions import RegistryError
+
+if typing.TYPE_CHECKING:
+    from marshmallow import Schema
+
+    SchemaType = typing.Type[Schema]
+
+# {
+#   <class_name>: <list of class objects>
+#   <module_path_to_class>: <list of class objects>
+# }
+_registry = {}  # type: dict[str, list[SchemaType]]
+
+
+def register(classname: str, cls: SchemaType) -> None:
+    """Add a class to the registry of serializer classes. When a class is
+    registered, an entry for both its classname and its full, module-qualified
+    path are added to the registry.
+
+    Example: ::
+
+        class MyClass:
+            pass
+
+        register('MyClass', MyClass)
+        # Registry:
+        # {
+        #   'MyClass': [path.to.MyClass],
+        #   'path.to.MyClass': [path.to.MyClass],
+        # }
+
+    """
+    # Module where the class is located
+    module = cls.__module__
+    # Full module path to the class
+    # e.g. user.schemas.UserSchema
+    fullpath = ".".join([module, classname])
+    # If the class is already registered; need to check if the entries are
+    # in the same module as cls to avoid having multiple instances of the same
+    # class in the registry
+    if classname in _registry and not any(
+        each.__module__ == module for each in _registry[classname]
+    ):
+        _registry[classname].append(cls)
+    elif classname not in _registry:
+        _registry[classname] = [cls]
+
+    # Also register the full path
+    if fullpath not in _registry:
+        _registry.setdefault(fullpath, []).append(cls)
+    else:
+        # If fullpath does exist, replace existing entry
+        _registry[fullpath] = [cls]
+    return None
+
+
+def get_class(classname: str, all: bool = False) -> list[SchemaType] | SchemaType:
+    """Retrieve a class from the registry.
+
+    :raises: marshmallow.exceptions.RegistryError if the class cannot be found
+        or if there are multiple entries for the given class name.
+    """
+    try:
+        classes = _registry[classname]
+    except KeyError as error:
+        raise RegistryError(
+            f"Class with name {classname!r} was not found. You may need "
+            "to import the class."
+        ) from error
+    if len(classes) > 1:
+        if all:
+            return _registry[classname]
+        raise RegistryError(
+            f"Multiple classes with name {classname!r} "
+            "were found. Please use the full, "
+            "module-qualified path."
+        )
+    else:
+        return _registry[classname][0]

.venv/lib/python3.10/site-packages/marshmallow/decorators.py

@@ -0,0 +1,224 @@
+"""Decorators for registering schema pre-processing and post-processing methods.
+These should be imported from the top-level `marshmallow` module.
+
+Methods decorated with
+`pre_load <marshmallow.decorators.pre_load>`, `post_load <marshmallow.decorators.post_load>`,
+`pre_dump <marshmallow.decorators.pre_dump>`, `post_dump <marshmallow.decorators.post_dump>`,
+and `validates_schema <marshmallow.decorators.validates_schema>` receive
+``many`` as a keyword argument. In addition, `pre_load <marshmallow.decorators.pre_load>`,
+`post_load <marshmallow.decorators.post_load>`,
+and `validates_schema <marshmallow.decorators.validates_schema>` receive
+``partial``. If you don't need these arguments, add ``**kwargs`` to your method
+signature.
+
+
+Example: ::
+
+    from marshmallow import (
+        Schema, pre_load, pre_dump, post_load, validates_schema,
+        validates, fields, ValidationError
+    )
+
+    class UserSchema(Schema):
+
+        email = fields.Str(required=True)
+        age = fields.Integer(required=True)
+
+        @post_load
+        def lowerstrip_email(self, item, many, **kwargs):
+            item['email'] = item['email'].lower().strip()
+            return item
+
+        @pre_load(pass_many=True)
+        def remove_envelope(self, data, many, **kwargs):
+            namespace = 'results' if many else 'result'
+            return data[namespace]
+
+        @post_dump(pass_many=True)
+        def add_envelope(self, data, many, **kwargs):
+            namespace = 'results' if many else 'result'
+            return {namespace: data}
+
+        @validates_schema
+        def validate_email(self, data, **kwargs):
+            if len(data['email']) < 3:
+                raise ValidationError('Email must be more than 3 characters', 'email')
+
+        @validates('age')
+        def validate_age(self, data, **kwargs):
+            if data < 14:
+                raise ValidationError('Too young!')
+
+.. note::
+    These decorators only work with instance methods. Class and static
+    methods are not supported.
+
+.. warning::
+    The invocation order of decorated methods of the same type is not guaranteed.
+    If you need to guarantee order of different processing steps, you should put
+    them in the same processing method.
+"""
+from __future__ import annotations
+
+import functools
+from typing import Any, Callable, cast
+
+PRE_DUMP = "pre_dump"
+POST_DUMP = "post_dump"
+PRE_LOAD = "pre_load"
+POST_LOAD = "post_load"
+VALIDATES = "validates"
+VALIDATES_SCHEMA = "validates_schema"
+
+
+class MarshmallowHook:
+    __marshmallow_hook__: dict[tuple[str, bool] | str, Any] | None = None
+
+
+def validates(field_name: str) -> Callable[..., Any]:
+    """Register a field validator.
+
+    :param str field_name: Name of the field that the method validates.
+    """
+    return set_hook(None, VALIDATES, field_name=field_name)
+
+
+def validates_schema(
+    fn: Callable[..., Any] | None = None,
+    pass_many: bool = False,
+    pass_original: bool = False,
+    skip_on_field_errors: bool = True,
+) -> Callable[..., Any]:
+    """Register a schema-level validator.
+
+    By default it receives a single object at a time, transparently handling the ``many``
+    argument passed to the `Schema`'s :func:`~marshmallow.Schema.validate` call.
+    If ``pass_many=True``, the raw data (which may be a collection) is passed.
+
+    If ``pass_original=True``, the original data (before unmarshalling) will be passed as
+    an additional argument to the method.
+
+    If ``skip_on_field_errors=True``, this validation method will be skipped whenever
+    validation errors have been detected when validating fields.
+
+    .. versionchanged:: 3.0.0b1
+        ``skip_on_field_errors`` defaults to `True`.
+
+    .. versionchanged:: 3.0.0
+        ``partial`` and ``many`` are always passed as keyword arguments to
+        the decorated method.
+    """
+    return set_hook(
+        fn,
+        (VALIDATES_SCHEMA, pass_many),
+        pass_original=pass_original,
+        skip_on_field_errors=skip_on_field_errors,
+    )
+
+
+def pre_dump(
+    fn: Callable[..., Any] | None = None, pass_many: bool = False
+) -> Callable[..., Any]:
+    """Register a method to invoke before serializing an object. The method
+    receives the object to be serialized and returns the processed object.
+
+    By default it receives a single object at a time, transparently handling the ``many``
+    argument passed to the `Schema`'s :func:`~marshmallow.Schema.dump` call.
+    If ``pass_many=True``, the raw data (which may be a collection) is passed.
+
+    .. versionchanged:: 3.0.0
+        ``many`` is always passed as a keyword arguments to the decorated method.
+    """
+    return set_hook(fn, (PRE_DUMP, pass_many))
+
+
+def post_dump(
+    fn: Callable[..., Any] | None = None,
+    pass_many: bool = False,
+    pass_original: bool = False,
+) -> Callable[..., Any]:
+    """Register a method to invoke after serializing an object. The method
+    receives the serialized object and returns the processed object.
+
+    By default it receives a single object at a time, transparently handling the ``many``
+    argument passed to the `Schema`'s :func:`~marshmallow.Schema.dump` call.
+    If ``pass_many=True``, the raw data (which may be a collection) is passed.
+
+    If ``pass_original=True``, the original data (before serializing) will be passed as
+    an additional argument to the method.
+
+    .. versionchanged:: 3.0.0
+        ``many`` is always passed as a keyword arguments to the decorated method.
+    """
+    return set_hook(fn, (POST_DUMP, pass_many), pass_original=pass_original)
+
+
+def pre_load(
+    fn: Callable[..., Any] | None = None, pass_many: bool = False
+) -> Callable[..., Any]:
+    """Register a method to invoke before deserializing an object. The method
+    receives the data to be deserialized and returns the processed data.
+
+    By default it receives a single object at a time, transparently handling the ``many``
+    argument passed to the `Schema`'s :func:`~marshmallow.Schema.load` call.
+    If ``pass_many=True``, the raw data (which may be a collection) is passed.
+
+    .. versionchanged:: 3.0.0
+        ``partial`` and ``many`` are always passed as keyword arguments to
+        the decorated method.
+    """
+    return set_hook(fn, (PRE_LOAD, pass_many))
+
+
+def post_load(
+    fn: Callable[..., Any] | None = None,
+    pass_many: bool = False,
+    pass_original: bool = False,
+) -> Callable[..., Any]:
+    """Register a method to invoke after deserializing an object. The method
+    receives the deserialized data and returns the processed data.
+
+    By default it receives a single object at a time, transparently handling the ``many``
+    argument passed to the `Schema`'s :func:`~marshmallow.Schema.load` call.
+    If ``pass_many=True``, the raw data (which may be a collection) is passed.
+
+    If ``pass_original=True``, the original data (before deserializing) will be passed as
+    an additional argument to the method.
+
+    .. versionchanged:: 3.0.0
+        ``partial`` and ``many`` are always passed as keyword arguments to
+        the decorated method.
+    """
+    return set_hook(fn, (POST_LOAD, pass_many), pass_original=pass_original)
+
+
+def set_hook(
+    fn: Callable[..., Any] | None, key: tuple[str, bool] | str, **kwargs: Any
+) -> Callable[..., Any]:
+    """Mark decorated function as a hook to be picked up later.
+    You should not need to use this method directly.
+
+    .. note::
+        Currently only works with functions and instance methods. Class and
+        static methods are not supported.
+
+    :return: Decorated function if supplied, else this decorator with its args
+        bound.
+    """
+    # Allow using this as either a decorator or a decorator factory.
+    if fn is None:
+        return functools.partial(set_hook, key=key, **kwargs)
+
+    # Set a __marshmallow_hook__ attribute instead of wrapping in some class,
+    # because I still want this to end up as a normal (unbound) method.
+    function = cast(MarshmallowHook, fn)
+    try:
+        hook_config = function.__marshmallow_hook__
+    except AttributeError:
+        function.__marshmallow_hook__ = hook_config = {}
+    # Also save the kwargs for the tagged function on
+    # __marshmallow_hook__, keyed by (<tag>, <pass_many>)
+    if hook_config is not None:
+        hook_config[key] = kwargs
+
+    return fn

.venv/lib/python3.10/site-packages/marshmallow/error_store.py

@@ -0,0 +1,60 @@
+"""Utilities for storing collections of error messages.
+
+.. warning::
+
+    This module is treated as private API.
+    Users should not need to use this module directly.
+"""
+
+from marshmallow.exceptions import SCHEMA
+
+
+class ErrorStore:
+    def __init__(self):
+        #: Dictionary of errors stored during serialization
+        self.errors = {}
+
+    def store_error(self, messages, field_name=SCHEMA, index=None):
+        # field error  -> store/merge error messages under field name key
+        # schema error -> if string or list, store/merge under _schema key
+        #              -> if dict, store/merge with other top-level keys
+        if field_name != SCHEMA or not isinstance(messages, dict):
+            messages = {field_name: messages}
+        if index is not None:
+            messages = {index: messages}
+        self.errors = merge_errors(self.errors, messages)
+
+
+def merge_errors(errors1, errors2):
+    """Deeply merge two error messages.
+
+    The format of ``errors1`` and ``errors2`` matches the ``message``
+    parameter of :exc:`marshmallow.exceptions.ValidationError`.
+    """
+    if not errors1:
+        return errors2
+    if not errors2:
+        return errors1
+    if isinstance(errors1, list):
+        if isinstance(errors2, list):
+            return errors1 + errors2
+        if isinstance(errors2, dict):
+            return dict(errors2, **{SCHEMA: merge_errors(errors1, errors2.get(SCHEMA))})
+        return errors1 + [errors2]
+    if isinstance(errors1, dict):
+        if isinstance(errors2, list):
+            return dict(errors1, **{SCHEMA: merge_errors(errors1.get(SCHEMA), errors2)})
+        if isinstance(errors2, dict):
+            errors = dict(errors1)
+            for key, val in errors2.items():
+                if key in errors:
+                    errors[key] = merge_errors(errors[key], val)
+                else:
+                    errors[key] = val
+            return errors
+        return dict(errors1, **{SCHEMA: merge_errors(errors1.get(SCHEMA), errors2)})
+    if isinstance(errors2, list):
+        return [errors1] + errors2
+    if isinstance(errors2, dict):
+        return dict(errors2, **{SCHEMA: merge_errors(errors1, errors2.get(SCHEMA))})
+    return [errors1, errors2]

.venv/lib/python3.10/site-packages/marshmallow/exceptions.py

@@ -0,0 +1,70 @@
+"""Exception classes for marshmallow-related errors."""
+from __future__ import annotations
+
+import typing
+
+# Key used for schema-level validation errors
+SCHEMA = "_schema"
+
+
+class MarshmallowError(Exception):
+    """Base class for all marshmallow-related errors."""
+
+
+class ValidationError(MarshmallowError):
+    """Raised when validation fails on a field or schema.
+
+    Validators and custom fields should raise this exception.
+
+    :param message: An error message, list of error messages, or dict of
+        error messages. If a dict, the keys are subitems and the values are error messages.
+    :param field_name: Field name to store the error on.
+        If `None`, the error is stored as schema-level error.
+    :param data: Raw input data.
+    :param valid_data: Valid (de)serialized data.
+    """
+
+    def __init__(
+        self,
+        message: str | list | dict,
+        field_name: str = SCHEMA,
+        data: typing.Mapping[str, typing.Any]
+        | typing.Iterable[typing.Mapping[str, typing.Any]]
+        | None = None,
+        valid_data: list[dict[str, typing.Any]] | dict[str, typing.Any] | None = None,
+        **kwargs,
+    ):
+        self.messages = [message] if isinstance(message, (str, bytes)) else message
+        self.field_name = field_name
+        self.data = data
+        self.valid_data = valid_data
+        self.kwargs = kwargs
+        super().__init__(message)
+
+    def normalized_messages(self):
+        if self.field_name == SCHEMA and isinstance(self.messages, dict):
+            return self.messages
+        return {self.field_name: self.messages}
+
+    @property
+    def messages_dict(self) -> dict[str, typing.Any]:
+        if not isinstance(self.messages, dict):
+            raise TypeError(
+                "cannot access 'messages_dict' when 'messages' is of type "
+                + type(self.messages).__name__
+            )
+        return self.messages
+
+
+class RegistryError(NameError):
+    """Raised when an invalid operation is performed on the serializer
+    class registry.
+    """
+
+
+class StringNotCollectionError(MarshmallowError, TypeError):
+    """Raised when a string is passed when a list of strings is expected."""
+
+
+class FieldInstanceResolutionError(MarshmallowError, TypeError):
+    """Raised when schema to instantiate is neither a Schema class nor an instance."""

.venv/lib/python3.10/site-packages/marshmallow/orderedset.py

@@ -0,0 +1,89 @@
+# OrderedSet
+# Copyright (c) 2009 Raymond Hettinger
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation files
+# (the "Software"), to deal in the Software without restriction,
+# including without limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of the Software,
+# and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+#     The above copyright notice and this permission notice shall be
+#     included in all copies or substantial portions of the Software.
+#
+#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#     OTHER DEALINGS IN THE SOFTWARE.
+from collections.abc import MutableSet
+
+
+class OrderedSet(MutableSet):
+    def __init__(self, iterable=None):
+        self.end = end = []
+        end += [None, end, end]  # sentinel node for doubly linked list
+        self.map = {}  # key --> [key, prev, next]
+        if iterable is not None:
+            self |= iterable
+
+    def __len__(self):
+        return len(self.map)
+
+    def __contains__(self, key):
+        return key in self.map
+
+    def add(self, key):
+        if key not in self.map:
+            end = self.end
+            curr = end[1]
+            curr[2] = end[1] = self.map[key] = [key, curr, end]
+
+    def discard(self, key):
+        if key in self.map:
+            key, prev, next = self.map.pop(key)
+            prev[2] = next
+            next[1] = prev
+
+    def __iter__(self):
+        end = self.end
+        curr = end[2]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[2]
+
+    def __reversed__(self):
+        end = self.end
+        curr = end[1]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[1]
+
+    def pop(self, last=True):
+        if not self:
+            raise KeyError("set is empty")
+        key = self.end[1][0] if last else self.end[2][0]
+        self.discard(key)
+        return key
+
+    def __repr__(self):
+        if not self:
+            return f"{self.__class__.__name__}()"
+        return f"{self.__class__.__name__}({list(self)!r})"
+
+    def __eq__(self, other):
+        if isinstance(other, OrderedSet):
+            return len(self) == len(other) and list(self) == list(other)
+        return set(self) == set(other)
+
+
+if __name__ == "__main__":
+    s = OrderedSet("abracadaba")
+    t = OrderedSet("simsalabim")
+    print(s | t)
+    print(s & t)
+    print(s - t)

.venv/lib/python3.10/site-packages/marshmallow/types.py

@@ -0,0 +1,11 @@
+"""Type aliases.
+
+.. warning::
+
+    This module is provisional. Types may be modified, added, and removed between minor releases.
+"""
+import typing
+
+StrSequenceOrSet = typing.Union[typing.Sequence[str], typing.AbstractSet[str]]
+Tag = typing.Union[str, typing.Tuple[str, bool]]
+Validator = typing.Callable[[typing.Any], typing.Any]

.venv/lib/python3.10/site-packages/marshmallow/utils.py

@@ -0,0 +1,375 @@
+"""Utility methods for marshmallow."""
+from __future__ import annotations
+
+import collections
+import datetime as dt
+import functools
+import inspect
+import json
+import re
+import typing
+import warnings
+from collections.abc import Mapping
+from email.utils import format_datetime, parsedate_to_datetime
+from pprint import pprint as py_pprint
+
+from marshmallow.base import FieldABC
+from marshmallow.exceptions import FieldInstanceResolutionError
+from marshmallow.warnings import RemovedInMarshmallow4Warning
+
+EXCLUDE = "exclude"
+INCLUDE = "include"
+RAISE = "raise"
+_UNKNOWN_VALUES = {EXCLUDE, INCLUDE, RAISE}
+
+
+class _Missing:
+    def __bool__(self):
+        return False
+
+    def __copy__(self):
+        return self
+
+    def __deepcopy__(self, _):
+        return self
+
+    def __repr__(self):
+        return "<marshmallow.missing>"
+
+
+# Singleton value that indicates that a field's value is missing from input
+# dict passed to :meth:`Schema.load`. If the field's value is not required,
+# it's ``default`` value is used.
+missing = _Missing()
+
+
+def is_generator(obj) -> bool:
+    """Return True if ``obj`` is a generator"""
+    return inspect.isgeneratorfunction(obj) or inspect.isgenerator(obj)
+
+
+def is_iterable_but_not_string(obj) -> bool:
+    """Return True if ``obj`` is an iterable object that isn't a string."""
+    return (hasattr(obj, "__iter__") and not hasattr(obj, "strip")) or is_generator(obj)
+
+
+def is_collection(obj) -> bool:
+    """Return True if ``obj`` is a collection type, e.g list, tuple, queryset."""
+    return is_iterable_but_not_string(obj) and not isinstance(obj, Mapping)
+
+
+def is_instance_or_subclass(val, class_) -> bool:
+    """Return True if ``val`` is either a subclass or instance of ``class_``."""
+    try:
+        return issubclass(val, class_)
+    except TypeError:
+        return isinstance(val, class_)
+
+
+def is_keyed_tuple(obj) -> bool:
+    """Return True if ``obj`` has keyed tuple behavior, such as
+    namedtuples or SQLAlchemy's KeyedTuples.
+    """
+    return isinstance(obj, tuple) and hasattr(obj, "_fields")
+
+
+def pprint(obj, *args, **kwargs) -> None:
+    """Pretty-printing function that can pretty-print OrderedDicts
+    like regular dictionaries. Useful for printing the output of
+    :meth:`marshmallow.Schema.dump`.
+
+    .. deprecated:: 3.7.0
+        marshmallow.pprint will be removed in marshmallow 4.
+    """
+    warnings.warn(
+        "marshmallow's pprint function is deprecated and will be removed in marshmallow 4.",
+        RemovedInMarshmallow4Warning,
+        stacklevel=2,
+    )
+    if isinstance(obj, collections.OrderedDict):
+        print(json.dumps(obj, *args, **kwargs))
+    else:
+        py_pprint(obj, *args, **kwargs)
+
+
+# https://stackoverflow.com/a/27596917
+def is_aware(datetime: dt.datetime) -> bool:
+    return (
+        datetime.tzinfo is not None and datetime.tzinfo.utcoffset(datetime) is not None
+    )
+
+
+def from_rfc(datestring: str) -> dt.datetime:
+    """Parse a RFC822-formatted datetime string and return a datetime object.
+
+    https://stackoverflow.com/questions/885015/how-to-parse-a-rfc-2822-date-time-into-a-python-datetime  # noqa: B950
+    """
+    return parsedate_to_datetime(datestring)
+
+
+def rfcformat(datetime: dt.datetime) -> str:
+    """Return the RFC822-formatted representation of a datetime object.
+
+    :param datetime datetime: The datetime.
+    """
+    return format_datetime(datetime)
+
+
+# Hat tip to Django for ISO8601 deserialization functions
+
+_iso8601_datetime_re = re.compile(
+    r"(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})"
+    r"[T ](?P<hour>\d{1,2}):(?P<minute>\d{1,2})"
+    r"(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?"
+    r"(?P<tzinfo>Z|[+-]\d{2}(?::?\d{2})?)?$"
+)
+
+_iso8601_date_re = re.compile(r"(?P<year>\d{4})-(?P<month>\d{1,2})-(?P<day>\d{1,2})$")
+
+_iso8601_time_re = re.compile(
+    r"(?P<hour>\d{1,2}):(?P<minute>\d{1,2})"
+    r"(?::(?P<second>\d{1,2})(?:\.(?P<microsecond>\d{1,6})\d{0,6})?)?"
+)
+
+
+def get_fixed_timezone(offset: int | float | dt.timedelta) -> dt.timezone:
+    """Return a tzinfo instance with a fixed offset from UTC."""
+    if isinstance(offset, dt.timedelta):
+        offset = offset.total_seconds() // 60
+    sign = "-" if offset < 0 else "+"
+    hhmm = "%02d%02d" % divmod(abs(offset), 60)
+    name = sign + hhmm
+    return dt.timezone(dt.timedelta(minutes=offset), name)
+
+
+def from_iso_datetime(value):
+    """Parse a string and return a datetime.datetime.
+
+    This function supports time zone offsets. When the input contains one,
+    the output uses a timezone with a fixed offset from UTC.
+    """
+    match = _iso8601_datetime_re.match(value)
+    if not match:
+        raise ValueError("Not a valid ISO8601-formatted datetime string")
+    kw = match.groupdict()
+    kw["microsecond"] = kw["microsecond"] and kw["microsecond"].ljust(6, "0")
+    tzinfo = kw.pop("tzinfo")
+    if tzinfo == "Z":
+        tzinfo = dt.timezone.utc
+    elif tzinfo is not None:
+        offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
+        offset = 60 * int(tzinfo[1:3]) + offset_mins
+        if tzinfo[0] == "-":
+            offset = -offset
+        tzinfo = get_fixed_timezone(offset)
+    kw = {k: int(v) for k, v in kw.items() if v is not None}
+    kw["tzinfo"] = tzinfo
+    return dt.datetime(**kw)
+
+
+def from_iso_time(value):
+    """Parse a string and return a datetime.time.
+
+    This function doesn't support time zone offsets.
+    """
+    match = _iso8601_time_re.match(value)
+    if not match:
+        raise ValueError("Not a valid ISO8601-formatted time string")
+    kw = match.groupdict()
+    kw["microsecond"] = kw["microsecond"] and kw["microsecond"].ljust(6, "0")
+    kw = {k: int(v) for k, v in kw.items() if v is not None}
+    return dt.time(**kw)
+
+
+def from_iso_date(value):
+    """Parse a string and return a datetime.date."""
+    match = _iso8601_date_re.match(value)
+    if not match:
+        raise ValueError("Not a valid ISO8601-formatted date string")
+    kw = {k: int(v) for k, v in match.groupdict().items()}
+    return dt.date(**kw)
+
+
+def from_timestamp(value: typing.Any) -> dt.datetime:
+    value = float(value)
+    if value < 0:
+        raise ValueError("Not a valid POSIX timestamp")
+
+    # Load a timestamp with utc as timezone to prevent using system timezone.
+    # Then set timezone to None, to let the Field handle adding timezone info.
+    try:
+        return dt.datetime.fromtimestamp(value, tz=dt.timezone.utc).replace(tzinfo=None)
+    except OverflowError as exc:
+        raise ValueError("Timestamp is too large") from exc
+    except OSError as exc:
+        raise ValueError("Error converting value to datetime") from exc
+
+
+def from_timestamp_ms(value: typing.Any) -> dt.datetime:
+    value = float(value)
+    return from_timestamp(value / 1000)
+
+
+def timestamp(
+    value: dt.datetime,
+) -> float:
+    if not is_aware(value):
+        # When a date is naive, use UTC as zone info to prevent using system timezone.
+        value = value.replace(tzinfo=dt.timezone.utc)
+    return value.timestamp()
+
+
+def timestamp_ms(value: dt.datetime) -> float:
+    return timestamp(value) * 1000
+
+
+def isoformat(datetime: dt.datetime) -> str:
+    """Return the ISO8601-formatted representation of a datetime object.
+
+    :param datetime datetime: The datetime.
+    """
+    return datetime.isoformat()
+
+
+def to_iso_time(time: dt.time) -> str:
+    return dt.time.isoformat(time)
+
+
+def to_iso_date(date: dt.date) -> str:
+    return dt.date.isoformat(date)
+
+
+def ensure_text_type(val: str | bytes) -> str:
+    if isinstance(val, bytes):
+        val = val.decode("utf-8")
+    return str(val)
+
+
+def pluck(dictlist: list[dict[str, typing.Any]], key: str):
+    """Extracts a list of dictionary values from a list of dictionaries.
+    ::
+
+        >>> dlist = [{'id': 1, 'name': 'foo'}, {'id': 2, 'name': 'bar'}]
+        >>> pluck(dlist, 'id')
+        [1, 2]
+    """
+    return [d[key] for d in dictlist]
+
+
+# Various utilities for pulling keyed values from objects
+
+
+def get_value(obj, key: int | str, default=missing):
+    """Helper for pulling a keyed value off various types of objects. Fields use
+    this method by default to access attributes of the source object. For object `x`
+    and attribute `i`, this method first tries to access `x[i]`, and then falls back to
+    `x.i` if an exception is raised.
+
+    .. warning::
+        If an object `x` does not raise an exception when `x[i]` does not exist,
+        `get_value` will never check the value `x.i`. Consider overriding
+        `marshmallow.fields.Field.get_value` in this case.
+    """
+    if not isinstance(key, int) and "." in key:
+        return _get_value_for_keys(obj, key.split("."), default)
+    else:
+        return _get_value_for_key(obj, key, default)
+
+
+def _get_value_for_keys(obj, keys, default):
+    if len(keys) == 1:
+        return _get_value_for_key(obj, keys[0], default)
+    else:
+        return _get_value_for_keys(
+            _get_value_for_key(obj, keys[0], default), keys[1:], default
+        )
+
+
+def _get_value_for_key(obj, key, default):
+    if not hasattr(obj, "__getitem__"):
+        return getattr(obj, key, default)
+
+    try:
+        return obj[key]
+    except (KeyError, IndexError, TypeError, AttributeError):
+        return getattr(obj, key, default)
+
+
+def set_value(dct: dict[str, typing.Any], key: str, value: typing.Any):
+    """Set a value in a dict. If `key` contains a '.', it is assumed
+    be a path (i.e. dot-delimited string) to the value's location.
+
+    ::
+
+        >>> d = {}
+        >>> set_value(d, 'foo.bar', 42)
+        >>> d
+        {'foo': {'bar': 42}}
+    """
+    if "." in key:
+        head, rest = key.split(".", 1)
+        target = dct.setdefault(head, {})
+        if not isinstance(target, dict):
+            raise ValueError(
+                f"Cannot set {key} in {head} " f"due to existing value: {target}"
+            )
+        set_value(target, rest, value)
+    else:
+        dct[key] = value
+
+
+def callable_or_raise(obj):
+    """Check that an object is callable, else raise a :exc:`TypeError`."""
+    if not callable(obj):
+        raise TypeError(f"Object {obj!r} is not callable.")
+    return obj
+
+
+def _signature(func: typing.Callable) -> list[str]:
+    return list(inspect.signature(func).parameters.keys())
+
+
+def get_func_args(func: typing.Callable) -> list[str]:
+    """Given a callable, return a list of argument names. Handles
+    `functools.partial` objects and class-based callables.
+
+    .. versionchanged:: 3.0.0a1
+        Do not return bound arguments, eg. ``self``.
+    """
+    if inspect.isfunction(func) or inspect.ismethod(func):
+        return _signature(func)
+    if isinstance(func, functools.partial):
+        return _signature(func.func)
+    # Callable class
+    return _signature(func)
+
+
+def resolve_field_instance(cls_or_instance):
+    """Return a Schema instance from a Schema class or instance.
+
+    :param type|Schema cls_or_instance: Marshmallow Schema class or instance.
+    """
+    if isinstance(cls_or_instance, type):
+        if not issubclass(cls_or_instance, FieldABC):
+            raise FieldInstanceResolutionError
+        return cls_or_instance()
+    else:
+        if not isinstance(cls_or_instance, FieldABC):
+            raise FieldInstanceResolutionError
+        return cls_or_instance
+
+
+def timedelta_to_microseconds(value: dt.timedelta) -> int:
+    """Compute the total microseconds of a timedelta
+
+    https://github.com/python/cpython/blob/bb3e0c240bc60fe08d332ff5955d54197f79751c/Lib/datetime.py#L665-L667  # noqa: B950
+    """
+    return (value.days * (24 * 3600) + value.seconds) * 1000000 + value.microseconds
+
+
+def validate_unknown_parameter_value(obj: typing.Any) -> str:
+    if obj not in _UNKNOWN_VALUES:
+        raise ValueError(
+            f"Object {obj!r} is not a valid value for the 'unknown' parameter"
+        )
+    return obj

.venv/lib/python3.10/site-packages/marshmallow/validate.py

@@ -0,0 +1,680 @@
+"""Validation classes for various types of data."""
+from __future__ import annotations
+
+import re
+import typing
+from abc import ABC, abstractmethod
+from itertools import zip_longest
+from operator import attrgetter
+
+from marshmallow import types
+from marshmallow.exceptions import ValidationError
+
+_T = typing.TypeVar("_T")
+
+
+class Validator(ABC):
+    """Abstract base class for validators.
+
+    .. note::
+        This class does not provide any validation behavior. It is only used to
+        add a useful `__repr__` implementation for validators.
+    """
+
+    error = None  # type: str | None
+
+    def __repr__(self) -> str:
+        args = self._repr_args()
+        args = f"{args}, " if args else ""
+
+        return f"<{self.__class__.__name__}({args}error={self.error!r})>"
+
+    def _repr_args(self) -> str:
+        """A string representation of the args passed to this validator. Used by
+        `__repr__`.
+        """
+        return ""
+
+    @abstractmethod
+    def __call__(self, value: typing.Any) -> typing.Any:
+        ...
+
+
+class And(Validator):
+    """Compose multiple validators and combine their error messages.
+
+    Example: ::
+
+        from marshmallow import validate, ValidationError
+
+        def is_even(value):
+            if value % 2 != 0:
+                raise ValidationError("Not an even value.")
+
+        validator = validate.And(validate.Range(min=0), is_even)
+        validator(-1)
+        # ValidationError: ['Must be greater than or equal to 0.', 'Not an even value.']
+
+    :param validators: Validators to combine.
+    :param error: Error message to use when a validator returns ``False``.
+    """
+
+    default_error_message = "Invalid value."
+
+    def __init__(self, *validators: types.Validator, error: str | None = None):
+        self.validators = tuple(validators)
+        self.error = error or self.default_error_message  # type: str
+
+    def _repr_args(self) -> str:
+        return f"validators={self.validators!r}"
+
+    def __call__(self, value: typing.Any) -> typing.Any:
+        errors = []
+        kwargs = {}
+        for validator in self.validators:
+            try:
+                r = validator(value)
+                if not isinstance(validator, Validator) and r is False:
+                    raise ValidationError(self.error)
+            except ValidationError as err:
+                kwargs.update(err.kwargs)
+                if isinstance(err.messages, dict):
+                    errors.append(err.messages)
+                else:
+                    # FIXME : Get rid of cast
+                    errors.extend(typing.cast(list, err.messages))
+        if errors:
+            raise ValidationError(errors, **kwargs)
+        return value
+
+
+class URL(Validator):
+    """Validate a URL.
+
+    :param relative: Whether to allow relative URLs.
+    :param absolute: Whether to allow absolute URLs.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}`.
+    :param schemes: Valid schemes. By default, ``http``, ``https``,
+        ``ftp``, and ``ftps`` are allowed.
+    :param require_tld: Whether to reject non-FQDN hostnames.
+    """
+
+    class RegexMemoizer:
+        def __init__(self):
+            self._memoized = {}
+
+        def _regex_generator(
+            self, relative: bool, absolute: bool, require_tld: bool
+        ) -> typing.Pattern:
+            hostname_variants = [
+                # a normal domain name, expressed in [A-Z0-9] chars with hyphens allowed only in the middle
+                # note that the regex will be compiled with IGNORECASE, so these are upper and lowercase chars
+                (
+                    r"(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+"
+                    r"(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)"
+                ),
+                # or the special string 'localhost'
+                r"localhost",
+                # or IPv4
+                r"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}",
+                # or IPv6
+                r"\[[A-F0-9]*:[A-F0-9:]+\]",
+            ]
+            if not require_tld:
+                # allow dotless hostnames
+                hostname_variants.append(r"(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.?)")
+
+            absolute_part = "".join(
+                (
+                    # scheme (e.g. 'https://', 'ftp://', etc)
+                    # this is validated separately against allowed schemes, so in the regex
+                    # we simply want to capture its existence
+                    r"(?:[a-z0-9\.\-\+]*)://",
+                    # userinfo, for URLs encoding authentication
+                    # e.g. 'ftp://foo:bar@ftp.example.org/'
+                    r"(?:(?:[a-z0-9\-._~!$&'()*+,;=:]|%[0-9a-f]{2})*@)?",
+                    # netloc, the hostname/domain part of the URL plus the optional port
+                    r"(?:",
+                    "|".join(hostname_variants),
+                    r")",
+                    r"(?::\d+)?",
+                )
+            )
+            relative_part = r"(?:/?|[/?]\S+)\Z"
+
+            if relative:
+                if absolute:
+                    parts: tuple[str, ...] = (
+                        r"^(",
+                        absolute_part,
+                        r")?",
+                        relative_part,
+                    )
+                else:
+                    parts = (r"^", relative_part)
+            else:
+                parts = (r"^", absolute_part, relative_part)
+
+            return re.compile("".join(parts), re.IGNORECASE)
+
+        def __call__(
+            self, relative: bool, absolute: bool, require_tld: bool
+        ) -> typing.Pattern:
+            key = (relative, absolute, require_tld)
+            if key not in self._memoized:
+                self._memoized[key] = self._regex_generator(
+                    relative, absolute, require_tld
+                )
+
+            return self._memoized[key]
+
+    _regex = RegexMemoizer()
+
+    default_message = "Not a valid URL."
+    default_schemes = {"http", "https", "ftp", "ftps"}
+
+    def __init__(
+        self,
+        *,
+        relative: bool = False,
+        absolute: bool = True,
+        schemes: types.StrSequenceOrSet | None = None,
+        require_tld: bool = True,
+        error: str | None = None,
+    ):
+        if not relative and not absolute:
+            raise ValueError(
+                "URL validation cannot set both relative and absolute to False."
+            )
+        self.relative = relative
+        self.absolute = absolute
+        self.error = error or self.default_message  # type: str
+        self.schemes = schemes or self.default_schemes
+        self.require_tld = require_tld
+
+    def _repr_args(self) -> str:
+        return f"relative={self.relative!r}, absolute={self.absolute!r}"
+
+    def _format_error(self, value) -> str:
+        return self.error.format(input=value)
+
+    def __call__(self, value: str) -> str:
+        message = self._format_error(value)
+        if not value:
+            raise ValidationError(message)
+
+        # Check first if the scheme is valid
+        if "://" in value:
+            scheme = value.split("://")[0].lower()
+            if scheme not in self.schemes:
+                raise ValidationError(message)
+
+        regex = self._regex(self.relative, self.absolute, self.require_tld)
+
+        if not regex.search(value):
+            raise ValidationError(message)
+
+        return value
+
+
+class Email(Validator):
+    """Validate an email address.
+
+    :param error: Error message to raise in case of a validation error. Can be
+        interpolated with `{input}`.
+    """
+
+    USER_REGEX = re.compile(
+        r"(^[-!#$%&'*+/=?^`{}|~\w]+(\.[-!#$%&'*+/=?^`{}|~\w]+)*\Z"  # dot-atom
+        # quoted-string
+        r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]'
+        r'|\\[\001-\011\013\014\016-\177])*"\Z)',
+        re.IGNORECASE | re.UNICODE,
+    )
+
+    DOMAIN_REGEX = re.compile(
+        # domain
+        r"(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+"
+        r"(?:[A-Z]{2,6}|[A-Z0-9-]{2,})\Z"
+        # literal form, ipv4 address (SMTP 4.1.3)
+        r"|^\[(25[0-5]|2[0-4]\d|[0-1]?\d?\d)"
+        r"(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\]\Z",
+        re.IGNORECASE | re.UNICODE,
+    )
+
+    DOMAIN_WHITELIST = ("localhost",)
+
+    default_message = "Not a valid email address."
+
+    def __init__(self, *, error: str | None = None):
+        self.error = error or self.default_message  # type: str
+
+    def _format_error(self, value: str) -> str:
+        return self.error.format(input=value)
+
+    def __call__(self, value: str) -> str:
+        message = self._format_error(value)
+
+        if not value or "@" not in value:
+            raise ValidationError(message)
+
+        user_part, domain_part = value.rsplit("@", 1)
+
+        if not self.USER_REGEX.match(user_part):
+            raise ValidationError(message)
+
+        if domain_part not in self.DOMAIN_WHITELIST:
+            if not self.DOMAIN_REGEX.match(domain_part):
+                try:
+                    domain_part = domain_part.encode("idna").decode("ascii")
+                except UnicodeError:
+                    pass
+                else:
+                    if self.DOMAIN_REGEX.match(domain_part):
+                        return value
+                raise ValidationError(message)
+
+        return value
+
+
+class Range(Validator):
+    """Validator which succeeds if the value passed to it is within the specified
+    range. If ``min`` is not specified, or is specified as `None`,
+    no lower bound exists. If ``max`` is not specified, or is specified as `None`,
+    no upper bound exists. The inclusivity of the bounds (if they exist) is configurable.
+    If ``min_inclusive`` is not specified, or is specified as `True`, then
+    the ``min`` bound is included in the range. If ``max_inclusive`` is not specified,
+    or is specified as `True`, then the ``max`` bound is included in the range.
+
+    :param min: The minimum value (lower bound). If not provided, minimum
+        value will not be checked.
+    :param max: The maximum value (upper bound). If not provided, maximum
+        value will not be checked.
+    :param min_inclusive: Whether the `min` bound is included in the range.
+    :param max_inclusive: Whether the `max` bound is included in the range.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}`, `{min}` and `{max}`.
+    """
+
+    message_min = "Must be {min_op} {{min}}."
+    message_max = "Must be {max_op} {{max}}."
+    message_all = "Must be {min_op} {{min}} and {max_op} {{max}}."
+
+    message_gte = "greater than or equal to"
+    message_gt = "greater than"
+    message_lte = "less than or equal to"
+    message_lt = "less than"
+
+    def __init__(
+        self,
+        min=None,
+        max=None,
+        *,
+        min_inclusive: bool = True,
+        max_inclusive: bool = True,
+        error: str | None = None,
+    ):
+        self.min = min
+        self.max = max
+        self.error = error
+        self.min_inclusive = min_inclusive
+        self.max_inclusive = max_inclusive
+
+        # interpolate messages based on bound inclusivity
+        self.message_min = self.message_min.format(
+            min_op=self.message_gte if self.min_inclusive else self.message_gt
+        )
+        self.message_max = self.message_max.format(
+            max_op=self.message_lte if self.max_inclusive else self.message_lt
+        )
+        self.message_all = self.message_all.format(
+            min_op=self.message_gte if self.min_inclusive else self.message_gt,
+            max_op=self.message_lte if self.max_inclusive else self.message_lt,
+        )
+
+    def _repr_args(self) -> str:
+        return "min={!r}, max={!r}, min_inclusive={!r}, max_inclusive={!r}".format(
+            self.min, self.max, self.min_inclusive, self.max_inclusive
+        )
+
+    def _format_error(self, value: _T, message: str) -> str:
+        return (self.error or message).format(input=value, min=self.min, max=self.max)
+
+    def __call__(self, value: _T) -> _T:
+        if self.min is not None and (
+            value < self.min if self.min_inclusive else value <= self.min
+        ):
+            message = self.message_min if self.max is None else self.message_all
+            raise ValidationError(self._format_error(value, message))
+
+        if self.max is not None and (
+            value > self.max if self.max_inclusive else value >= self.max
+        ):
+            message = self.message_max if self.min is None else self.message_all
+            raise ValidationError(self._format_error(value, message))
+
+        return value
+
+
+class Length(Validator):
+    """Validator which succeeds if the value passed to it has a
+    length between a minimum and maximum. Uses len(), so it
+    can work for strings, lists, or anything with length.
+
+    :param min: The minimum length. If not provided, minimum length
+        will not be checked.
+    :param max: The maximum length. If not provided, maximum length
+        will not be checked.
+    :param equal: The exact length. If provided, maximum and minimum
+        length will not be checked.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}`, `{min}` and `{max}`.
+    """
+
+    message_min = "Shorter than minimum length {min}."
+    message_max = "Longer than maximum length {max}."
+    message_all = "Length must be between {min} and {max}."
+    message_equal = "Length must be {equal}."
+
+    def __init__(
+        self,
+        min: int | None = None,
+        max: int | None = None,
+        *,
+        equal: int | None = None,
+        error: str | None = None,
+    ):
+        if equal is not None and any([min, max]):
+            raise ValueError(
+                "The `equal` parameter was provided, maximum or "
+                "minimum parameter must not be provided."
+            )
+
+        self.min = min
+        self.max = max
+        self.error = error
+        self.equal = equal
+
+    def _repr_args(self) -> str:
+        return f"min={self.min!r}, max={self.max!r}, equal={self.equal!r}"
+
+    def _format_error(self, value: typing.Sized, message: str) -> str:
+        return (self.error or message).format(
+            input=value, min=self.min, max=self.max, equal=self.equal
+        )
+
+    def __call__(self, value: typing.Sized) -> typing.Sized:
+        length = len(value)
+
+        if self.equal is not None:
+            if length != self.equal:
+                raise ValidationError(self._format_error(value, self.message_equal))
+            return value
+
+        if self.min is not None and length < self.min:
+            message = self.message_min if self.max is None else self.message_all
+            raise ValidationError(self._format_error(value, message))
+
+        if self.max is not None and length > self.max:
+            message = self.message_max if self.min is None else self.message_all
+            raise ValidationError(self._format_error(value, message))
+
+        return value
+
+
+class Equal(Validator):
+    """Validator which succeeds if the ``value`` passed to it is
+    equal to ``comparable``.
+
+    :param comparable: The object to compare to.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}` and `{other}`.
+    """
+
+    default_message = "Must be equal to {other}."
+
+    def __init__(self, comparable, *, error: str | None = None):
+        self.comparable = comparable
+        self.error = error or self.default_message  # type: str
+
+    def _repr_args(self) -> str:
+        return f"comparable={self.comparable!r}"
+
+    def _format_error(self, value: _T) -> str:
+        return self.error.format(input=value, other=self.comparable)
+
+    def __call__(self, value: _T) -> _T:
+        if value != self.comparable:
+            raise ValidationError(self._format_error(value))
+        return value
+
+
+class Regexp(Validator):
+    """Validator which succeeds if the ``value`` matches ``regex``.
+
+    .. note::
+
+        Uses `re.match`, which searches for a match at the beginning of a string.
+
+    :param regex: The regular expression string to use. Can also be a compiled
+        regular expression pattern.
+    :param flags: The regexp flags to use, for example re.IGNORECASE. Ignored
+        if ``regex`` is not a string.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}` and `{regex}`.
+    """
+
+    default_message = "String does not match expected pattern."
+
+    def __init__(
+        self,
+        regex: str | bytes | typing.Pattern,
+        flags: int = 0,
+        *,
+        error: str | None = None,
+    ):
+        self.regex = (
+            re.compile(regex, flags) if isinstance(regex, (str, bytes)) else regex
+        )
+        self.error = error or self.default_message  # type: str
+
+    def _repr_args(self) -> str:
+        return f"regex={self.regex!r}"
+
+    def _format_error(self, value: str | bytes) -> str:
+        return self.error.format(input=value, regex=self.regex.pattern)
+
+    @typing.overload
+    def __call__(self, value: str) -> str:
+        ...
+
+    @typing.overload
+    def __call__(self, value: bytes) -> bytes:
+        ...
+
+    def __call__(self, value):
+        if self.regex.match(value) is None:
+            raise ValidationError(self._format_error(value))
+
+        return value
+
+
+class Predicate(Validator):
+    """Call the specified ``method`` of the ``value`` object. The
+    validator succeeds if the invoked method returns an object that
+    evaluates to True in a Boolean context. Any additional keyword
+    argument will be passed to the method.
+
+    :param method: The name of the method to invoke.
+    :param error: Error message to raise in case of a validation error.
+        Can be interpolated with `{input}` and `{method}`.
+    :param kwargs: Additional keyword arguments to pass to the method.
+    """
+
+    default_message = "Invalid input."
+
+    def __init__(self, method: str, *, error: str | None = None, **kwargs):
+        self.method = method
+        self.error = error or self.default_message  # type: str
+        self.kwargs = kwargs
+
+    def _repr_args(self) -> str:
+        return f"method={self.method!r}, kwargs={self.kwargs!r}"
+
+    def _format_error(self, value: typing.Any) -> str:
+        return self.error.format(input=value, method=self.method)
+
+    def __call__(self, value: typing.Any) -> typing.Any:
+        method = getattr(value, self.method)
+
+        if not method(**self.kwargs):
+            raise ValidationError(self._format_error(value))
+
+        return value
+
+
+class NoneOf(Validator):
+    """Validator which fails if ``value`` is a member of ``iterable``.
+
+    :param iterable: A sequence of invalid values.
+    :param error: Error message to raise in case of a validation error. Can be
+        interpolated using `{input}` and `{values}`.
+    """
+
+    default_message = "Invalid input."
+
+    def __init__(self, iterable: typing.Iterable, *, error: str | None = None):
+        self.iterable = iterable
+        self.values_text = ", ".join(str(each) for each in self.iterable)
+        self.error = error or self.default_message  # type: str
+
+    def _repr_args(self) -> str:
+        return f"iterable={self.iterable!r}"
+
+    def _format_error(self, value) -> str:
+        return self.error.format(input=value, values=self.values_text)
+
+    def __call__(self, value: typing.Any) -> typing.Any:
+        try:
+            if value in self.iterable:
+                raise ValidationError(self._format_error(value))
+        except TypeError:
+            pass
+
+        return value
+
+
+class OneOf(Validator):
+    """Validator which succeeds if ``value`` is a member of ``choices``.
+
+    :param choices: A sequence of valid values.
+    :param labels: Optional sequence of labels to pair with the choices.
+    :param error: Error message to raise in case of a validation error. Can be
+        interpolated with `{input}`, `{choices}` and `{labels}`.
+    """
+
+    default_message = "Must be one of: {choices}."
+
+    def __init__(
+        self,
+        choices: typing.Iterable,
+        labels: typing.Iterable[str] | None = None,
+        *,
+        error: str | None = None,
+    ):
+        self.choices = choices
+        self.choices_text = ", ".join(str(choice) for choice in self.choices)
+        self.labels = labels if labels is not None else []
+        self.labels_text = ", ".join(str(label) for label in self.labels)
+        self.error = error or self.default_message  # type: str
+
+    def _repr_args(self) -> str:
+        return f"choices={self.choices!r}, labels={self.labels!r}"
+
+    def _format_error(self, value) -> str:
+        return self.error.format(
+            input=value, choices=self.choices_text, labels=self.labels_text
+        )
+
+    def __call__(self, value: typing.Any) -> typing.Any:
+        try:
+            if value not in self.choices:
+                raise ValidationError(self._format_error(value))
+        except TypeError as error:
+            raise ValidationError(self._format_error(value)) from error
+
+        return value
+
+    def options(
+        self,
+        valuegetter: str | typing.Callable[[typing.Any], typing.Any] = str,
+    ) -> typing.Iterable[tuple[typing.Any, str]]:
+        """Return a generator over the (value, label) pairs, where value
+        is a string associated with each choice. This convenience method
+        is useful to populate, for instance, a form select field.
+
+        :param valuegetter: Can be a callable or a string. In the former case, it must
+            be a one-argument callable which returns the value of a
+            choice. In the latter case, the string specifies the name
+            of an attribute of the choice objects. Defaults to `str()`
+            or `str()`.
+        """
+        valuegetter = valuegetter if callable(valuegetter) else attrgetter(valuegetter)
+        pairs = zip_longest(self.choices, self.labels, fillvalue="")
+
+        return ((valuegetter(choice), label) for choice, label in pairs)
+
+
+class ContainsOnly(OneOf):
+    """Validator which succeeds if ``value`` is a sequence and each element
+    in the sequence is also in the sequence passed as ``choices``. Empty input
+    is considered valid.
+
+    :param iterable choices: Same as :class:`OneOf`.
+    :param iterable labels: Same as :class:`OneOf`.
+    :param str error: Same as :class:`OneOf`.
+
+    .. versionchanged:: 3.0.0b2
+        Duplicate values are considered valid.
+    .. versionchanged:: 3.0.0b2
+        Empty input is considered valid. Use `validate.Length(min=1) <marshmallow.validate.Length>`
+        to validate against empty inputs.
+    """
+
+    default_message = "One or more of the choices you made was not in: {choices}."
+
+    def _format_error(self, value) -> str:
+        value_text = ", ".join(str(val) for val in value)
+        return super()._format_error(value_text)
+
+    def __call__(self, value: typing.Sequence[_T]) -> typing.Sequence[_T]:
+        # We can't use set.issubset because does not handle unhashable types
+        for val in value:
+            if val not in self.choices:
+                raise ValidationError(self._format_error(value))
+        return value
+
+
+class ContainsNoneOf(NoneOf):
+    """Validator which fails if ``value`` is a sequence and any element
+    in the sequence is a member of the sequence passed as ``iterable``. Empty input
+    is considered valid.
+
+    :param iterable iterable: Same as :class:`NoneOf`.
+    :param str error: Same as :class:`NoneOf`.
+
+    .. versionadded:: 3.6.0
+    """
+
+    default_message = "One or more of the choices you made was in: {values}."
+
+    def _format_error(self, value) -> str:
+        value_text = ", ".join(str(val) for val in value)
+        return super()._format_error(value_text)
+
+    def __call__(self, value: typing.Sequence[_T]) -> typing.Sequence[_T]:
+        for val in value:
+            if val in self.iterable:
+                raise ValidationError(self._format_error(value))
+        return value

.venv/lib/python3.10/site-packages/marshmallow/warnings.py

@@ -0,0 +1,2 @@
+class RemovedInMarshmallow4Warning(DeprecationWarning):
+    pass