Improved app builder to return self in use_extension

src/cpl_core/application/__init__.py

@@ -15,7 +15,7 @@ __title__ = 'cpl_core.application'
 __author__ = 'Sven Heidemann'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2020 - 2022 sh-edraft.de'
-__version__ = '2022.10.0'
+__version__ = '2022.10.0.post1'
 
 from collections import namedtuple
 
@@ -29,4 +29,4 @@ from .startup_abc import StartupABC
 from .startup_extension_abc import StartupExtensionABC
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
-version_info = VersionInfo(major='2022', minor='10', micro='0')
+version_info = VersionInfo(major='2022', minor='10', micro='0.post1')

src/cpl_core/application/application_builder.py

@@ -33,12 +33,14 @@ class ApplicationBuilder(ApplicationBuilderABC):
     def use_startup(self, startup: Type[StartupABC]):
         self._startup = startup()
 
-    def use_extension(self, extension: Type[Union[ApplicationExtensionABC, StartupExtensionABC]]):
+    def use_extension(self, extension: Type[Union[ApplicationExtensionABC, StartupExtensionABC]]) -> 'ApplicationBuilder':
         if issubclass(extension, ApplicationExtensionABC) and extension not in self._app_extensions:
             self._app_extensions.append(extension)
         elif issubclass(extension, StartupExtensionABC) and extension not in self._startup_extensions:
             self._startup_extensions.append(extension)
 
+        return self
+
     def _build_startup(self):
         for ex in self._startup_extensions:
             extension = ex()