blender-syntax-operators

Creating a Blender operator requires implementing the execute, invoke, modal, or poll methods within the bpy.types.Operator class, alongside defining bl_idname and bl_options to handle user interactions and registration correctly.

The poll method in Blender addon development checks whether an operator can run in the current context, preventing execution errors by validating UI states before the operator's execute or invoke methods are triggered.

Context overrides for Blender operators changed significantly in recent versions, requiring updated syntax to pass context arguments directly to execute or invoke methods, ensuring compatibility across Blender 3.x, 4.x, and 5.x.

Your Blender operator crashes when invoked from the wrong context because the poll method is missing or fails to validate the current environment, an anti-pattern that allows execution when UI conditions are unmet.

Common anti-patterns in bpy operator scripting include skipping the poll method, using incorrect bl_idname conventions, and ignoring version-specific context override changes, all of which lead to unexpected crashes and addon instability.

You need to specify bl_options when registering a bpy.types.Operator to control execution behavior such as undo steps, blocking, or registration, ensuring the operator integrates predictably within the Blender environment.