[FIX] fastapi_backport: Protect against inner_exception attribute error

Author: paradoxxxzero

.pre-commit-config.yaml

@@ -16,7 +16,7 @@ exclude: |
   (LICENSE.*|COPYING.*)
 default_language_version:
   python: python3
-  node: "14.13.0"
+  node: "18.18.2"
 repos:
   - repo: local
     hooks:
@@ -33,14 +33,14 @@ repos:
         language: fail
         files: '[a-zA-Z0-9_]*/i18n/en\.po$'
   - repo: https://github.com/oca/maintainer-tools
-    rev: ab1d7f6
+    rev: 451de41fa3e8aa81d077c804322d48632eb5ff74
     hooks:
       # update the NOT INSTALLABLE ADDONS section above
       - id: oca-update-pre-commit-excluded-addons
       - id: oca-fix-manifest-website
         args: ["https://github.com/akretion/ak-odoo-incubator"]
   - repo: https://github.com/myint/autoflake
-    rev: v1.4
+    rev: v2.3.1
     hooks:
       - id: autoflake
         args:
@@ -51,22 +51,20 @@ repos:
           - --remove-duplicate-keys
           - --remove-unused-variables
   - repo: https://github.com/psf/black
-    rev: 22.3.0
+    rev: 24.2.0
     hooks:
       - id: black
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v2.1.2
+    rev: v3.1.0
     hooks:
       - id: prettier
-        name: prettier (with plugin-xml)
+        name: prettier + plugin-xml
         additional_dependencies:
-          - "prettier@2.1.2"
-          - "@prettier/plugin-xml@0.12.0"
-        args:
-          - --plugin=@prettier/plugin-xml
+          - "prettier@3.1.0"
+          - "@prettier/plugin-xml@3.3.1"
         files: \.(css|htm|html|js|json|jsx|less|md|scss|toml|ts|xml|yaml|yml)$
   - repo: https://github.com/pre-commit/mirrors-eslint
-    rev: v7.8.1
+    rev: v8.56.0
     hooks:
       - id: eslint
         verbose: true
@@ -101,7 +99,7 @@ repos:
       - id: pyupgrade
         args: ["--keep-percent-format"]
   - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
+    rev: 5.13.2
     hooks:
       - id: isort
         name: isort except __init__.py
@@ -119,13 +117,13 @@ repos:
           - --header
           - "# generated from manifests external_dependencies"
   - repo: https://github.com/PyCQA/flake8
-    rev: 3.8.3
+    rev: 7.0.0
     hooks:
       - id: flake8
         name: flake8
-        additional_dependencies: ["flake8-bugbear==20.1.4"]
+        additional_dependencies: ["flake8-bugbear==24.2.6"]
   - repo: https://github.com/OCA/pylint-odoo
-    rev: 7.0.2
+    rev: v9.0.5
     hooks:
       - id: pylint_odoo
         name: pylint with optional checks

fastapi_backport/http.py

@@ -42,6 +42,9 @@ def __init__(self, *args):
         super().__init__(*args)
         self.params = {}
         self._dispatcher = http._dispatchers.get("fastapi", FastApiDispatcher)(self)
+        # Ensure inner_exception exists on dispatcher since the flow on error
+        # is quite different
+        self._dispatcher.inner_exception = None
 
     def make_response(self, data, headers=None, cookies=None, status=200):
         """Helper for non-HTML responses, or HTML responses with custom