added one more ensure function for easier approach.

client/ayon_core/addon/__init__.py

@@ -17,6 +17,7 @@ from .base import (
 )
 
 from .utils import (
+    ensure_addons_are_process_context_ready,
     ensure_addons_are_process_ready,
 )
 
@@ -36,5 +37,6 @@ __all__ = (
     "AddonsManager",
     "load_addons",
 
+    "ensure_addons_are_process_context_ready",
     "ensure_addons_are_process_ready",
 )

client/ayon_core/addon/utils.py

@@ -62,7 +62,7 @@ def _handle_error(
         os.remove(tmp_path)
 
 
-def ensure_addons_are_process_ready(
+def ensure_addons_are_process_context_ready(
     process_context: ProcessContext,
     addons_manager: Optional[AddonsManager] = None,
     exit_on_failure: bool = True,
@@ -134,7 +134,7 @@ def ensure_addons_are_process_ready(
     if failed:
         detail = None
         if use_detail:
-            # In case stdout was not captured, use the tracebacks
+            # In case stdout was not captured, use the tracebacks as detail
             if not output_str:
                 output_str = "\n".join(tracebacks)
             detail = output_str
@@ -143,3 +143,32 @@ def ensure_addons_are_process_ready(
         if not exit_on_failure:
             return exception
         sys.exit(1)
+
+
+def ensure_addons_are_process_ready(
+    addons_manager: Optional[AddonsManager] = None,
+    exit_on_failure: bool = True,
+    **kwargs,
+) -> Optional[Exception]:
+    """Ensure all enabled addons are ready to be used in the given context.
+
+    Call this method only in AYON launcher process and as first thing
+        to avoid possible clashes with preparation. For example 'QApplication'
+        should not be created.
+
+    Args:
+        addons_manager (Optional[AddonsManager]): The addons
+            manager to use. If not provided, a new one will be created.
+        exit_on_failure (bool, optional): If True, the process will exit
+            if an error occurs. Defaults to True.
+        kwargs: The keyword arguments to pass to the ProcessContext.
+
+    Returns:
+        Optional[Exception]: The exception that occurred during the
+            preparation, if any.
+
+    """
+    context: ProcessContext = ProcessContext(**kwargs)
+    return ensure_addons_are_process_context_ready(
+        context, addons_manager, exit_on_failure
+    )