ood day i need to show a file with yaml extension in tkinter list widget         def Filer(self):              self.filename = askopenfilename(title="File Finder", filetypes=[("yaml files", "*.yaml"),("All files","*.*")])         with open(self.filename,"r",encoding="utf-8") as file:             doc =yaml.load(file,Loader=yaml.FullLoader)             file = yaml.dump(doc,sort_keys=True)             for file in doc:                 self.List.insert(END,file)

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