From 8fe00bcff05f7a0e8939ab8e3adf54af9399f29c Mon Sep 17 00:00:00 2001
From: Vlad Fisher <51226323+VKFisher@users.noreply.github.com>
Date: Mon, 28 Mar 2022 01:11:04 +0700
Subject: [PATCH] 569 fix numpy typing wiring (#570)

* change erroneous issubclass call to isinstance

* import numpy.typing in tests

* better subclass check

* fix return
---
 src/dependency_injector/wiring.py    | 8 +++++++-
 tests/unit/samples/wiring/imports.py | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/dependency_injector/wiring.py b/src/dependency_injector/wiring.py
index 37aba496..927796bc 100644
--- a/src/dependency_injector/wiring.py
+++ b/src/dependency_injector/wiring.py
@@ -321,7 +321,13 @@ class InspectFilter:
     def _is_starlette_request_cls(self, instance: object) -> bool:
         return starlette \
                and isinstance(instance, type) \
-               and issubclass(instance, starlette.requests.Request)
+               and self._safe_is_subclass(instance, starlette.requests.Request)
+
+    def _safe_is_subclass(self, instance: type, cls: type) -> bool:
+        try:
+            return issubclass(instance, cls)
+        except TypeError:
+            return False
 
     def _is_builtin(self, instance: object) -> bool:
         return inspect.isbuiltin(instance)
diff --git a/tests/unit/samples/wiring/imports.py b/tests/unit/samples/wiring/imports.py
index 37fa8ebe..ecab7ce8 100644
--- a/tests/unit/samples/wiring/imports.py
+++ b/tests/unit/samples/wiring/imports.py
@@ -5,6 +5,7 @@ import sys
 if "pypy" not in sys.version.lower():
     import numpy  # noqa
     from numpy import *  # noqa
+    from numpy.typing import *  # noqa
 
     import scipy  # noqa
     from scipy import *  # noqa