python - How to thread a application? -

i'll referring python in question. ok, let's have script renames 1000 files.how multithread it? thought dividing files chunks makes code complex, , run 1000 thread, 1 each file, isn't going work.

here code.

import os import tkinter.messagebox import tkinter.ttk import tkinter.filedialog   tkinter import tk, stringvar, text, end  print("""     little reminder!     file gets renamed can't undo,so don't screw around this.     note : careful extension,you might lose files way.     """)  class rename:      def __init__(self,path): self.p = path      def rename(self):         try:              files = os.listdir(self.p)             = 0             os.chdir(self.p)             while <= len(files):                 ext = files[i].split(".")[-1]                 #you can change renaming variable,for example may add "file{}.{}".format(i,ext)..                 #also,don't play ext if don't know you're doing..                  os.rename(files[i],"{}.{}".format(i,ext))                 += 1                 yield "now renaming {}".format(files[i])          except oserror e: print("error -> {}".format(e))         except indexerror: pass  class gui:      def __init__(self):         self.root = tk()         self.root.wm_title("filerenamer")         self.root.config(background = "black")          # label         self.label = tkinter.ttk.label(self.root, text = "path: ")         self.label.config(foreground = "white", background = "black", font = ("arial", 16))         self.label.grid(row = 0, column = 0)          # file dialog         self.path = stringvar()         self.filepath = tkinter.ttk.button(self.root, text = "choose", command = self.askpath).grid(row = 0, column = 1)          # textwidget         self.text = text(self.root, height = 5, width = 50)         self.text.config(foreground = "white", background = "black", font = ("arial", 12))         self.text.grid(row = 3, column = 0, columnspan = 2)          # button         self.button = tkinter.ttk.button(self.root, text = "rename", command = self.rename)         self.button.grid(row = 2, column = 1, columnspan = 2)          self.root.mainloop()      def askpath(self):         self.path = tkinter.filedialog.askdirectory()      def rename(self):         path = os.path.abspath(self.path)         rem  = rename(path)         im in rem.rename():             self.text.insert(end, "{}\n".format(im))  # make sure add "\" path enter, otherwise you'll error. r = gui()