Now vendoring typeguard v2.13.3

.pre-commit-config.yaml

@@ -19,7 +19,7 @@
 
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.1.7
+    rev: v0.7.3
     hooks:
       - id: ruff-format  # formatter
         types_or: [ python, pyi, jupyter ]

jaxtyping/_pytree_type.py

@@ -22,7 +22,6 @@
 from typing import Any, Generic, TypeVar
 
 import jax.tree_util as jtu
-import typeguard
 
 from ._errors import AnnotationError
 from ._storage import (
@@ -95,14 +94,16 @@ def is_check_leaftype(x):
             #
             # Deliberately not using @jaxtyped so that we share the same `memo` as
             # whatever dynamic context we're currently in.
-            @typeguard.typechecked
+            from ._typeguard import typechecked
+
+            @typechecked
             def accepts_leaftype(x: cls.leaftype):
                 pass
 
             def is_leaftype(x):
                 try:
                     accepts_leaftype(x)
-                except _TypeCheckError:
+                except TypeError:
                     return False
                 else:
                     return True
@@ -249,14 +250,6 @@ class X(PyTree):
         return X
 
 
-try:
-    # new typeguard
-    _TypeCheckError = (TypeError, typeguard.TypeCheckError)
-except AttributeError:
-    # old typeguard
-    _TypeCheckError = TypeError
-
-
 # Can't do `class PyTree(Generic[_T]): ...` because we need to override the
 # instancecheck for PyTree[foo], but subclassing
 # `type(Generic[int])`, i.e. `typing._GenericAlias` is disallowed.

jaxtyping/_typeguard/LICENSE

@@ -0,0 +1,19 @@
+This is the MIT license: http://www.opensource.org/licenses/mit-license.php
+
+Copyright (c) Alex Grönholm
+
+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.

jaxtyping/_typeguard/README.md

@@ -0,0 +1,11 @@
+# Vendored copy of typeguard v2.13.3
+
+We include a vendored copy of typeguard v2.13.3. The reason we need a runtime typechecker is to be able to define `isinstance(..., PyTree[Foo])`.
+
+Of the available options:
+
+- `beartype` does not support `O(n)` checking.
+- `typeguard` v4 is notorious for having some bugs (they seem to re-parse the AST or something?? And then they die on the fact that we have strings in our annotations.)
+- `typeguard` v2 is what we use here... but we vendor it instead of depending on it, because people may still wish to use typeguard v4 in their own environments. (Notably a number of other packages depend on this, and it's just inconvenient to be incompatible at the package level, when the combinations which don't mix at runtime might never actually be used.)
+
+This is vendored under the terms of the MIT license, which is also reproduced here.