Fix issue pointed out by @AI-IshanBhatt

Also revert naked `raise` back to `SystemSetupError`.
I'd only done that for debugging purposes

esrally/mechanic/team.py

@@ -71,9 +71,6 @@ def __init__(self, root_path, entry_point):
             if BootstrapHookHandler(Component(root_path=p, entry_point=Car.entry_point)).can_load():
                 if p not in root_paths:
                     root_paths.append(p)
-                # multiple cars are based on the same hook
-                # elif root_paths != p:
-                #     raise exceptions.SystemSetupError(f"Invalid car: {name}. Multiple bootstrap hooks are forbidden.")
         all_config_base_vars.update(descriptor.config_base_variables)
         all_car_vars.update(descriptor.variables)
 
@@ -518,8 +515,7 @@ def load(self):
         except BaseException:
             msg = f"Could not load bootstrap hooks in [{self.loader.root_path}]"
             self.logger.exception(msg)
-            raise
-            # raise exceptions.SystemSetupError(msg)
+            raise exceptions.SystemSetupError(msg)
 
     def register(self, phase, hook):
         self.logger.info("Registering bootstrap hook [%s] for phase [%s] in component [%s]", hook.__name__, phase, self.component.name)

esrally/utils/modules.py

@@ -111,7 +111,6 @@ def load(self) -> Collection[ModuleType]:
             component_root_path = os.path.abspath(os.path.join(root_path, os.pardir))
             self.logger.debug("Adding [%s] to Python load path.", component_root_path)
             # needs to be at the beginning of the system path, otherwise import machinery tries to load application-internal modules
-            sys.path.insert(0, component_root_path)
             try:
                 root_module = self._load_component(component_name, module_dirs, root_path)
                 root_modules.append(root_module)