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.venv/lib/python3.12/site-packages/traitlets/utils/__init__.py

@@ -0,0 +1,91 @@
+from __future__ import annotations
+
+import os
+import pathlib
+from typing import Sequence
+
+
+# vestigal things from IPython_genutils.
+def cast_unicode(s: str | bytes, encoding: str = "utf-8") -> str:
+    if isinstance(s, bytes):
+        return s.decode(encoding, "replace")
+    return s
+
+
+def filefind(filename: str, path_dirs: Sequence[str] | None = None) -> str:
+    """Find a file by looking through a sequence of paths.
+
+    This iterates through a sequence of paths looking for a file and returns
+    the full, absolute path of the first occurrence of the file.  If no set of
+    path dirs is given, the filename is tested as is, after running through
+    :func:`expandvars` and :func:`expanduser`.  Thus a simple call::
+
+        filefind('myfile.txt')
+
+    will find the file in the current working dir, but::
+
+        filefind('~/myfile.txt')
+
+    Will find the file in the users home directory.  This function does not
+    automatically try any paths, such as the cwd or the user's home directory.
+
+    Parameters
+    ----------
+    filename : str
+        The filename to look for.
+    path_dirs : str, None or sequence of str
+        The sequence of paths to look for the file in.  If None, the filename
+        need to be absolute or be in the cwd.  If a string, the string is
+        put into a sequence and the searched.  If a sequence, walk through
+        each element and join with ``filename``, calling :func:`expandvars`
+        and :func:`expanduser` before testing for existence.
+
+    Returns
+    -------
+    Raises :exc:`IOError` or returns absolute path to file.
+    """
+
+    # If paths are quoted, abspath gets confused, strip them...
+    filename = filename.strip('"').strip("'")
+    # If the input is an absolute path, just check it exists
+    if os.path.isabs(filename) and os.path.isfile(filename):
+        return filename
+
+    if path_dirs is None:
+        path_dirs = ("",)
+    elif isinstance(path_dirs, str):
+        path_dirs = (path_dirs,)
+    elif isinstance(path_dirs, pathlib.Path):
+        path_dirs = (str(path_dirs),)
+
+    for path in path_dirs:
+        if path == ".":
+            path = os.getcwd()
+        testname = expand_path(os.path.join(path, filename))
+        if os.path.isfile(testname):
+            return os.path.abspath(testname)
+
+    raise OSError(f"File {filename!r} does not exist in any of the search paths: {path_dirs!r}")
+
+
+def expand_path(s: str) -> str:
+    """Expand $VARS and ~names in a string, like a shell
+
+    :Examples:
+
+       In [2]: os.environ['FOO']='test'
+
+       In [3]: expand_path('variable FOO is $FOO')
+       Out[3]: 'variable FOO is test'
+    """
+    # This is a pretty subtle hack. When expand user is given a UNC path
+    # on Windows (\\server\share$\%username%), os.path.expandvars, removes
+    # the $ to get (\\server\share\%username%). I think it considered $
+    # alone an empty var. But, we need the $ to remains there (it indicates
+    # a hidden share).
+    if os.name == "nt":
+        s = s.replace("$\\", "IPYTHON_TEMP")
+    s = os.path.expandvars(os.path.expanduser(s))
+    if os.name == "nt":
+        s = s.replace("IPYTHON_TEMP", "$\\")
+    return s

.venv/lib/python3.12/site-packages/traitlets/utils/bunch.py

@@ -0,0 +1,29 @@
+"""Yet another implementation of bunch
+
+attribute-access of items on a dict.
+"""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+from __future__ import annotations
+
+from typing import Any
+
+
+class Bunch(dict):  # type:ignore[type-arg]
+    """A dict with attribute-access"""
+
+    def __getattr__(self, key: str) -> Any:
+        try:
+            return self.__getitem__(key)
+        except KeyError as e:
+            raise AttributeError(key) from e
+
+    def __setattr__(self, key: str, value: Any) -> None:
+        self.__setitem__(key, value)
+
+    def __dir__(self) -> list[str]:
+        # py2-compat: can't use super because dict doesn't have __dir__
+        names = dir({})
+        names.extend(self.keys())
+        return names

.venv/lib/python3.12/site-packages/traitlets/utils/decorators.py

@@ -0,0 +1,86 @@
+"""Useful decorators for Traitlets users."""
+from __future__ import annotations
+
+import copy
+from inspect import Parameter, Signature, signature
+from typing import Any, Type, TypeVar
+
+from ..traitlets import HasTraits, Undefined
+
+
+def _get_default(value: Any) -> Any:
+    """Get default argument value, given the trait default value."""
+    return Parameter.empty if value == Undefined else value
+
+
+T = TypeVar("T", bound=HasTraits)
+
+
+def signature_has_traits(cls: Type[T]) -> Type[T]:
+    """Return a decorated class with a constructor signature that contain Trait names as kwargs."""
+    traits = [
+        (name, _get_default(value.default_value))
+        for name, value in cls.class_traits().items()
+        if not name.startswith("_")
+    ]
+
+    # Taking the __init__ signature, as the cls signature is not initialized yet
+    old_signature = signature(cls.__init__)
+    old_parameter_names = list(old_signature.parameters)
+
+    old_positional_parameters = []
+    old_var_positional_parameter = None  # This won't be None if the old signature contains *args
+    old_keyword_only_parameters = []
+    old_var_keyword_parameter = None  # This won't be None if the old signature contains **kwargs
+
+    for parameter_name in old_signature.parameters:
+        # Copy the parameter
+        parameter = copy.copy(old_signature.parameters[parameter_name])
+
+        if (
+            parameter.kind is Parameter.POSITIONAL_ONLY
+            or parameter.kind is Parameter.POSITIONAL_OR_KEYWORD
+        ):
+            old_positional_parameters.append(parameter)
+
+        elif parameter.kind is Parameter.VAR_POSITIONAL:
+            old_var_positional_parameter = parameter
+
+        elif parameter.kind is Parameter.KEYWORD_ONLY:
+            old_keyword_only_parameters.append(parameter)
+
+        elif parameter.kind is Parameter.VAR_KEYWORD:
+            old_var_keyword_parameter = parameter
+
+    # Unfortunately, if the old signature does not contain **kwargs, we can't do anything,
+    # because it can't accept traits as keyword arguments
+    if old_var_keyword_parameter is None:
+        raise RuntimeError(
+            f"The {cls} constructor does not take **kwargs, which means that the signature can not be expanded with trait names"
+        )
+
+    new_parameters = []
+
+    # Append the old positional parameters (except `self` which is the first parameter)
+    new_parameters += old_positional_parameters[1:]
+
+    # Append *args if the old signature had it
+    if old_var_positional_parameter is not None:
+        new_parameters.append(old_var_positional_parameter)
+
+    # Append the old keyword only parameters
+    new_parameters += old_keyword_only_parameters
+
+    # Append trait names as keyword only parameters in the signature
+    new_parameters += [
+        Parameter(name, kind=Parameter.KEYWORD_ONLY, default=default)
+        for name, default in traits
+        if name not in old_parameter_names
+    ]
+
+    # Append **kwargs
+    new_parameters.append(old_var_keyword_parameter)
+
+    cls.__signature__ = Signature(new_parameters)  # type:ignore[attr-defined]
+
+    return cls

.venv/lib/python3.12/site-packages/traitlets/utils/descriptions.py

@@ -0,0 +1,182 @@
+from __future__ import annotations
+
+import inspect
+import re
+import types
+from typing import Any
+
+
+def describe(
+    article: str | None,
+    value: Any,
+    name: str | None = None,
+    verbose: bool = False,
+    capital: bool = False,
+) -> str:
+    """Return string that describes a value
+
+    Parameters
+    ----------
+    article : str or None
+        A definite or indefinite article. If the article is
+        indefinite (i.e. "a" or "an") the appropriate one
+        will be inferred. Thus, the arguments of ``describe``
+        can themselves represent what the resulting string
+        will actually look like. If None, then no article
+        will be prepended to the result. For non-articled
+        description, values that are instances are treated
+        definitely, while classes are handled indefinitely.
+    value : any
+        The value which will be named.
+    name : str or None (default: None)
+        Only applies when ``article`` is "the" - this
+        ``name`` is a definite reference to the value.
+        By default one will be inferred from the value's
+        type and repr methods.
+    verbose : bool (default: False)
+        Whether the name should be concise or verbose. When
+        possible, verbose names include the module, and/or
+        class name where an object was defined.
+    capital : bool (default: False)
+        Whether the first letter of the article should
+        be capitalized or not. By default it is not.
+
+    Examples
+    --------
+    Indefinite description:
+
+    >>> describe("a", object())
+    'an object'
+    >>> describe("a", object)
+    'an object'
+    >>> describe("a", type(object))
+    'a type'
+
+    Definite description:
+
+    >>> describe("the", object())
+    "the object at '...'"
+    >>> describe("the", object)
+    'the object object'
+    >>> describe("the", type(object))
+    'the type type'
+
+    Definitely named description:
+
+    >>> describe("the", object(), "I made")
+    'the object I made'
+    >>> describe("the", object, "I will use")
+    'the object I will use'
+    """
+    if isinstance(article, str):
+        article = article.lower()
+
+    if not inspect.isclass(value):
+        typename = type(value).__name__
+    else:
+        typename = value.__name__
+    if verbose:
+        typename = _prefix(value) + typename
+
+    if article == "the" or (article is None and not inspect.isclass(value)):
+        if name is not None:
+            result = f"{typename} {name}"
+            if article is not None:
+                return add_article(result, True, capital)
+            else:
+                return result
+        else:
+            tick_wrap = False
+            if inspect.isclass(value):
+                name = value.__name__
+            elif isinstance(value, types.FunctionType):
+                name = value.__name__
+                tick_wrap = True
+            elif isinstance(value, types.MethodType):
+                name = value.__func__.__name__
+                tick_wrap = True
+            elif type(value).__repr__ in (
+                object.__repr__,
+                type.__repr__,
+            ):  # type:ignore[comparison-overlap]
+                name = "at '%s'" % hex(id(value))
+                verbose = False
+            else:
+                name = repr(value)
+                verbose = False
+            if verbose:
+                name = _prefix(value) + name
+            if tick_wrap:
+                name = name.join("''")
+            return describe(article, value, name=name, verbose=verbose, capital=capital)
+    elif article in ("a", "an") or article is None:
+        if article is None:
+            return typename
+        return add_article(typename, False, capital)
+    else:
+        raise ValueError(
+            "The 'article' argument should be 'the', 'a', 'an', or None not %r" % article
+        )
+
+
+def _prefix(value: Any) -> str:
+    if isinstance(value, types.MethodType):
+        name = describe(None, value.__self__, verbose=True) + "."
+    else:
+        module = inspect.getmodule(value)
+        if module is not None and module.__name__ != "builtins":
+            name = module.__name__ + "."
+        else:
+            name = ""
+    return name
+
+
+def class_of(value: Any) -> Any:
+    """Returns a string of the value's type with an indefinite article.
+
+    For example 'an Image' or 'a PlotValue'.
+    """
+    if inspect.isclass(value):
+        return add_article(value.__name__)
+    else:
+        return class_of(type(value))
+
+
+def add_article(name: str, definite: bool = False, capital: bool = False) -> str:
+    """Returns the string with a prepended article.
+
+    The input does not need to begin with a character.
+
+    Parameters
+    ----------
+    name : str
+        Name to which to prepend an article
+    definite : bool (default: False)
+        Whether the article is definite or not.
+        Indefinite articles being 'a' and 'an',
+        while 'the' is definite.
+    capital : bool (default: False)
+        Whether the added article should have
+        its first letter capitalized or not.
+    """
+    if definite:
+        result = "the " + name
+    else:
+        first_letters = re.compile(r"[\W_]+").sub("", name)
+        if first_letters[:1].lower() in "aeiou":
+            result = "an " + name
+        else:
+            result = "a " + name
+    if capital:
+        return result[0].upper() + result[1:]
+    else:
+        return result
+
+
+def repr_type(obj: Any) -> str:
+    """Return a string representation of a value and its type for readable
+
+    error messages.
+    """
+    the_type = type(obj)
+    return f"{obj!r} {the_type!r}"

.venv/lib/python3.12/site-packages/traitlets/utils/getargspec.py

@@ -0,0 +1,51 @@
+"""
+    getargspec excerpted from:
+
+    sphinx.util.inspect
+    ~~~~~~~~~~~~~~~~~~~
+    Helpers for inspecting Python modules.
+    :copyright: Copyright 2007-2015 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+from __future__ import annotations
+
+import inspect
+from functools import partial
+from typing import Any
+
+# Unmodified from sphinx below this line
+
+
+def getargspec(func: Any) -> inspect.FullArgSpec:
+    """Like inspect.getargspec but supports functools.partial as well."""
+    if inspect.ismethod(func):
+        func = func.__func__
+    if type(func) is partial:
+        orig_func = func.func
+        argspec = getargspec(orig_func)
+        args = list(argspec[0])
+        defaults = list(argspec[3] or ())
+        kwoargs = list(argspec[4])
+        kwodefs = dict(argspec[5] or {})
+        if func.args:
+            args = args[len(func.args) :]
+        for arg in func.keywords or ():
+            try:
+                i = args.index(arg) - len(args)
+                del args[i]
+                try:
+                    del defaults[i]
+                except IndexError:
+                    pass
+            except ValueError:  # must be a kwonly arg
+                i = kwoargs.index(arg)
+                del kwoargs[i]
+                del kwodefs[arg]
+        return inspect.FullArgSpec(
+            args, argspec[1], argspec[2], tuple(defaults), kwoargs, kwodefs, argspec[6]
+        )
+    while hasattr(func, "__wrapped__"):
+        func = func.__wrapped__
+    if not inspect.isfunction(func):
+        raise TypeError("%r is not a Python function" % func)
+    return inspect.getfullargspec(func)

.venv/lib/python3.12/site-packages/traitlets/utils/importstring.py

@@ -0,0 +1,41 @@
+"""
+A simple utility to import something by its string name.
+"""
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+from __future__ import annotations
+
+from typing import Any
+
+
+def import_item(name: str) -> Any:
+    """Import and return ``bar`` given the string ``foo.bar``.
+
+    Calling ``bar = import_item("foo.bar")`` is the functional equivalent of
+    executing the code ``from foo import bar``.
+
+    Parameters
+    ----------
+    name : string
+        The fully qualified name of the module/package being imported.
+
+    Returns
+    -------
+    mod : module object
+        The module that was imported.
+    """
+    if not isinstance(name, str):
+        raise TypeError("import_item accepts strings, not '%s'." % type(name))
+    parts = name.rsplit(".", 1)
+    if len(parts) == 2:
+        # called with 'foo.bar....'
+        package, obj = parts
+        module = __import__(package, fromlist=[obj])
+        try:
+            pak = getattr(module, obj)
+        except AttributeError as e:
+            raise ImportError("No module named %s" % obj) from e
+        return pak
+    else:
+        # called with un-dotted string
+        return __import__(parts[0])

.venv/lib/python3.12/site-packages/traitlets/utils/nested_update.py

@@ -0,0 +1,41 @@
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+from __future__ import annotations
+
+from typing import Any, Dict
+
+
+def nested_update(this: Dict[Any, Any], that: Dict[Any, Any]) -> Dict[Any, Any]:
+    """Merge two nested dictionaries.
+
+    Effectively a recursive ``dict.update``.
+
+    Examples
+    --------
+    Merge two flat dictionaries:
+    >>> nested_update(
+    ...     {'a': 1, 'b': 2},
+    ...     {'b': 3, 'c': 4}
+    ... )
+    {'a': 1, 'b': 3, 'c': 4}
+
+    Merge two nested dictionaries:
+    >>> nested_update(
+    ...     {'x': {'a': 1, 'b': 2}, 'y': 5, 'z': 6},
+    ...     {'x': {'b': 3, 'c': 4}, 'z': 7, '0': 8},
+    ... )
+    {'x': {'a': 1, 'b': 3, 'c': 4}, 'y': 5, 'z': 7, '0': 8}
+
+    """
+    for key, value in this.items():
+        if isinstance(value, dict):
+            if key in that and isinstance(that[key], dict):
+                nested_update(this[key], that[key])
+        elif key in that:
+            this[key] = that[key]
+
+    for key, value in that.items():
+        if key not in this:
+            this[key] = value
+
+    return this

.venv/lib/python3.12/site-packages/traitlets/utils/sentinel.py

@@ -0,0 +1,24 @@
+"""Sentinel class for constants with useful reprs"""
+
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+from __future__ import annotations
+
+import typing as t
+
+
+class Sentinel:
+    def __init__(self, name: str, module: t.Any, docstring: str | None = None) -> None:
+        self.name = name
+        self.module = module
+        if docstring:
+            self.__doc__ = docstring
+
+    def __repr__(self) -> str:
+        return str(self.module) + "." + self.name
+
+    def __copy__(self) -> Sentinel:
+        return self
+
+    def __deepcopy__(self, memo: t.Any) -> Sentinel:
+        return self

.venv/lib/python3.12/site-packages/traitlets/utils/text.py

@@ -0,0 +1,40 @@
+"""
+Utilities imported from ipython_genutils
+"""
+from __future__ import annotations
+
+import re
+import textwrap
+from textwrap import dedent
+from textwrap import indent as _indent
+from typing import List
+
+
+def indent(val: str) -> str:
+    return _indent(val, "    ")
+
+
+def wrap_paragraphs(text: str, ncols: int = 80) -> List[str]:
+    """Wrap multiple paragraphs to fit a specified width.
+
+    This is equivalent to textwrap.wrap, but with support for multiple
+    paragraphs, as separated by empty lines.
+
+    Returns
+    -------
+
+    list of complete paragraphs, wrapped to fill `ncols` columns.
+    """
+    paragraph_re = re.compile(r"\n(\s*\n)+", re.MULTILINE)
+    text = dedent(text).strip()
+    paragraphs = paragraph_re.split(text)[::2]  # every other entry is space
+    out_ps = []
+    indent_re = re.compile(r"\n\s+", re.MULTILINE)
+    for p in paragraphs:
+        # presume indentation that survives dedent is meaningful formatting,
+        # so don't fill unless text is flush.
+        if indent_re.search(p) is None:
+            # wrap paragraph
+            p = textwrap.fill(p, ncols)
+        out_ps.append(p)
+    return out_ps

.venv/lib/python3.12/site-packages/traitlets/utils/warnings.py

@@ -0,0 +1,64 @@
+from __future__ import annotations
+
+import inspect
+import os
+import typing as t
+import warnings
+
+
+def warn(msg: str, category: t.Any, *, stacklevel: int, source: t.Any = None) -> None:
+    """Like warnings.warn(), but category and stacklevel are required.
+
+    You pretty much never want the default stacklevel of 1, so this helps
+    encourage setting it explicitly."""
+    warnings.warn(msg, category=category, stacklevel=stacklevel, source=source)
+
+
+def deprecated_method(method: t.Any, cls: t.Any, method_name: str, msg: str) -> None:
+    """Show deprecation warning about a magic method definition.
+
+    Uses warn_explicit to bind warning to method definition instead of triggering code,
+    which isn't relevant.
+    """
+    warn_msg = f"{cls.__name__}.{method_name} is deprecated in traitlets 4.1: {msg}"
+
+    for parent in inspect.getmro(cls):
+        if method_name in parent.__dict__:
+            cls = parent
+            break
+    # limit deprecation messages to once per package
+    package_name = cls.__module__.split(".", 1)[0]
+    key = (package_name, msg)
+    if not should_warn(key):
+        return
+    try:
+        fname = inspect.getsourcefile(method) or "<unknown>"
+        lineno = inspect.getsourcelines(method)[1] or 0
+    except (OSError, TypeError) as e:
+        # Failed to inspect for some reason
+        warn(
+            warn_msg + ("\n(inspection failed) %s" % e),
+            DeprecationWarning,
+            stacklevel=2,
+        )
+    else:
+        warnings.warn_explicit(warn_msg, DeprecationWarning, fname, lineno)
+
+
+_deprecations_shown = set()
+
+
+def should_warn(key: t.Any) -> bool:
+    """Add our own checks for too many deprecation warnings.
+
+    Limit to once per package.
+    """
+    env_flag = os.environ.get("TRAITLETS_ALL_DEPRECATIONS")
+    if env_flag and env_flag != "0":
+        return True
+
+    if key not in _deprecations_shown:
+        _deprecations_shown.add(key)
+        return True
+    else:
+        return False