Error creating my own Operator

I’m trying to create a button in the Tools Tab to call my own code.

This is what I came up with so far researching.

import bpy
from bpy.types import Panel, Operator
 
class LegsOperator(Operator):
    bl_idname = "legs_operator"
    bl_label = "LegsOP"
    
    def execute(self, context)
        bpy.context.object.pose.bones["LeftArm"].rotation_quaternion[1] = 5
        return {'FINISHED'}


 
class BodypartPosesPanel(Panel):
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'TOOLS'
    bl_label = "Legs"
    bl_context = "posemode"
    bl_category = "Bodypart Poses"
    
    def draw(self, context):
        layout = self.layout
        obj = context.object
        
        row = layout.row()
        row.operator("legs_operator",text="click here")
        
        
def register():
    bpy.utils.register_class(BodypartPosesPanel)
    bpy.utils.register_class(LegsOperator)
    
def unregister():
    bpy.utils.unregister_class(LegsOperator)
    bpy.utils.unregister_class(BodypartPosesPanel)
    
if __name__ == "__main__":
    register()
    
print("my stuff loaded")

My it fails when I execute the script, I got error at:

def execute(self, context)

can somebody give me some direction?

thank you very much for the time

This should be posted in the Python Support Forum. But to answer your question, you’re missing a colon:

def execute(self, context)<b>:</b>​