run python script with button

raylight75 · July 31, 2013, 9:37am

Can i run python script via button in view3d panel
What should I write( syntax)

const · July 31, 2013, 10:25am

Here it is.


import bpy


class MyOperator(bpy.types.Operator):
    """This is my simple operator"""
    bl_idname = "scene.myoperator"
    bl_label = "My Operator"
    
    def execute(self, context):
        print("Hello")
        return {"FINISHED"}


class MyPanel(bpy.types.Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_label = "My Panel"
    bl_idname = "SCENE_PT_layout"




    def draw(self, context):
        layout = self.layout
        row = layout.row()
        row.operator("scene.myoperator")


bpy.utils.register_class(MyOperator)
bpy.utils.register_class(MyPanel)

raylight75 · July 31, 2013, 10:16pm

thanks const very helpfull

const · August 1, 2013, 7:00am

Thanks, for further information have a look at the Python templates in the Text Editor toolbar. Also if you see something you find interesting in the GUI do a right click and then “Edit Source” to investigate it.

mecximenes · February 14, 2017, 11:45am

instead of “print(“hello”)” I can’t use something like “bpy.ops.mesh.primitive_cube_add()”. Why? How can I use this kind of comand in Operators?

cmomoney · February 14, 2017, 12:21pm

You simply substitute that line with the operator you want to use:


import bpy




class MyOperator(bpy.types.Operator):
    """This is my simple operator"""
    bl_idname = "scene.myoperator"
    bl_label = "My Operator"
    
    def execute(self, context):
        bpy.ops.mesh.primitive_cube_add()
        return {"FINISHED"}




class MyPanel(bpy.types.Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_label = "My Panel"
    bl_idname = "SCENE_PT_layout"








    def draw(self, context):
        layout = self.layout
        row = layout.row()
        row.operator("scene.myoperator")




bpy.utils.register_class(MyOperator)
bpy.utils.register_class(MyPanel)

const · February 14, 2017, 4:17pm

This works for me, having an operator run another operator.


import bpy


class MyOperator(bpy.types.Operator):
    """This is my simple operator"""
    bl_idname = "scene.myoperator"
    bl_label = "My Operator"
    
    def execute(self, context):
        print("Hello")
        bpy.ops.mesh.primitive_cube_add()
        return {"FINISHED"}


bpy.utils.register_class(MyOperator)


# test call
bpy.ops.scene.myoperator()
#

jeffogranetto · February 28, 2017, 5:58pm

tks const!
Jeffo Granetto

Mauzz · July 17, 2019, 8:01pm

what is this line doing, I can not find it in the api.
bl_idname = "SCENE_PT_layout"

my question is based on the following example:

properties_material.py

this script that is integrated in your blender 2.79 that generates the GUI in the properties area does not have nor present this line in any part of the script, also what I observe is that it declares the class first