مراجعة وتصحيح كود الكلاس

السلام عليكم

أود مراجعة كتابة الكود والتصحيح عليه 

class Frame2(customtkinter.CTkFrame):
    def __init__(self, master):
        super().__init__(master)
        
        def LoadFile():
            
            filepath = filedialog.askopenfilename(initialdir="C:\\Users\\Cakow\\PycharmProjects\\Main", title="Open file okay?", filetypes=(("text files", "*.xlsx"), ("all files", "*.*")))
            filepathA = Path(filepath)
            df = pd.ExcelFile(filepathA)
            return df
            
            self.optionmenu1.configure(values = sht())
        
        def sht():
            A1=self.Frame2.LoadFile
            B1 =A1.sheet_names
            return B1
                
          
        self.button1 = customtkinter.CTkButton(self, text="إختيار ملف", font=customtkinter.CTkFont(family="Calibri", size=12, weight="bold"), command=LoadFile)
        self.button1.grid(row=0, column=1, padx=(10, 10), pady=(10, 10), sticky="e")
        
        self.optionmenu1 = customtkinter.CTkOptionMenu(self,values=["إختر ورقة العمل"], font=customtkinter.CTkFont(family="Calibri", size=12, weight="bold"))
        self.optionmenu1.grid(row=0, column=0, padx=(10, 10), pady=(10, 10), sticky="e")