tk

gistfile1.txt

  1           0 LOAD_CONST               0 (0)
              2 LOAD_CONST               1 (None)
              4 IMPORT_NAME              0 (tkinter)
              6 STORE_NAME               1 (tk)

  3           8 LOAD_BUILD_CLASS
             10 LOAD_CONST               2 (<code object Application at 0x10dc9af60, file "<dis>", line 3>)
             12 LOAD_CONST               3 ('Application')
             14 MAKE_FUNCTION            0
             16 LOAD_CONST               3 ('Application')
             18 LOAD_NAME                1 (tk)
             20 LOAD_ATTR                2 (Frame)
             22 CALL_FUNCTION            3
             24 STORE_NAME               3 (Application)

 23          26 LOAD_NAME                1 (tk)
             28 LOAD_METHOD              4 (Tk)
             30 CALL_METHOD              0
             32 STORE_NAME               5 (root)

 24          34 LOAD_NAME                3 (Application)
             36 LOAD_NAME                5 (root)
             38 LOAD_CONST               4 (('master',))
             40 CALL_FUNCTION_KW         1
             42 STORE_NAME               6 (app)

 25          44 LOAD_NAME                6 (app)
             46 LOAD_METHOD              7 (mainloop)
             48 CALL_METHOD              0
             50 POP_TOP
             52 LOAD_CONST               1 (None)
             54 RETURN_VALUE

Disassembly of <code object Application at 0x10dc9af60, file "<dis>", line 3>:
  3           0 LOAD_NAME                0 (__name__)
              2 STORE_NAME               1 (__module__)
              4 LOAD_CONST               0 ('Application')
              6 STORE_NAME               2 (__qualname__)

  4           8 LOAD_CONST               8 ((None,))
             10 LOAD_CLOSURE             0 (__class__)
             12 BUILD_TUPLE              1
             14 LOAD_CONST               2 (<code object __init__ at 0x10dc9adb0, file "<dis>", line 4>)
             16 LOAD_CONST               3 ('Application.__init__')
             18 MAKE_FUNCTION            9
             20 STORE_NAME               3 (__init__)

 10          22 LOAD_CONST               4 (<code object create_widgets at 0x10dc9ad20, file "<dis>", line 10>)
             24 LOAD_CONST               5 ('Application.create_widgets')
             26 MAKE_FUNCTION            0
             28 STORE_NAME               4 (create_widgets)

 20          30 LOAD_CONST               6 (<code object say_hi at 0x10dc9aed0, file "<dis>", line 20>)
             32 LOAD_CONST               7 ('Application.say_hi')
             34 MAKE_FUNCTION            0
             36 STORE_NAME               5 (say_hi)
             38 LOAD_CLOSURE             0 (__class__)
             40 DUP_TOP
             42 STORE_NAME               6 (__classcell__)
             44 RETURN_VALUE

Disassembly of <code object __init__ at 0x10dc9adb0, file "<dis>", line 4>:
  5           0 LOAD_GLOBAL              0 (super)
              2 CALL_FUNCTION            0
              4 LOAD_METHOD              1 (__init__)
              6 LOAD_FAST                1 (master)
              8 CALL_METHOD              1
             10 POP_TOP

  6          12 LOAD_FAST                1 (master)
             14 LOAD_FAST                0 (self)
             16 STORE_ATTR               2 (master)

  7          18 LOAD_FAST                0 (self)
             20 LOAD_METHOD              3 (pack)
             22 CALL_METHOD              0
             24 POP_TOP

  8          26 LOAD_FAST                0 (self)
             28 LOAD_METHOD              4 (create_widgets)
             30 CALL_METHOD              0
             32 POP_TOP
             34 LOAD_CONST               0 (None)
             36 RETURN_VALUE

Disassembly of <code object create_widgets at 0x10dc9ad20, file "<dis>", line 10>:
 11           0 LOAD_GLOBAL              0 (tk)
              2 LOAD_METHOD              1 (Button)
              4 LOAD_FAST                0 (self)
              6 CALL_METHOD              1
              8 LOAD_FAST                0 (self)
             10 STORE_ATTR               2 (hi_there)

 12          12 LOAD_CONST               1 ('Hello World\n(click me)')
             14 LOAD_FAST                0 (self)
             16 LOAD_ATTR                2 (hi_there)
             18 LOAD_CONST               2 ('text')
             20 STORE_SUBSCR

 13          22 LOAD_FAST                0 (self)
             24 LOAD_ATTR                3 (say_hi)
             26 LOAD_FAST                0 (self)
             28 LOAD_ATTR                2 (hi_there)
             30 LOAD_CONST               3 ('command')
             32 STORE_SUBSCR

 14          34 LOAD_FAST                0 (self)
             36 LOAD_ATTR                2 (hi_there)
             38 LOAD_ATTR                4 (pack)
             40 LOAD_CONST               4 ('top')
             42 LOAD_CONST               5 (('side',))
             44 CALL_FUNCTION_KW         1
             46 POP_TOP

 16          48 LOAD_GLOBAL              0 (tk)
             50 LOAD_ATTR                1 (Button)
             52 LOAD_FAST                0 (self)
             54 LOAD_CONST               6 ('QUIT')
             56 LOAD_CONST               7 ('red')

 17          58 LOAD_FAST                0 (self)
             60 LOAD_ATTR                5 (master)
             62 LOAD_ATTR                6 (destroy)
             64 LOAD_CONST               8 (('text', 'fg', 'command'))
             66 CALL_FUNCTION_KW         4
             68 LOAD_FAST                0 (self)
             70 STORE_ATTR               7 (quit)

 18          72 LOAD_FAST                0 (self)
             74 LOAD_ATTR                7 (quit)
             76 LOAD_ATTR                4 (pack)
             78 LOAD_CONST               9 ('bottom')
             80 LOAD_CONST               5 (('side',))
             82 CALL_FUNCTION_KW         1
             84 POP_TOP
             86 LOAD_CONST               0 (None)
             88 RETURN_VALUE

Disassembly of <code object say_hi at 0x10dc9aed0, file "<dis>", line 20>:
 21           0 LOAD_GLOBAL              0 (print)
              2 LOAD_CONST               1 ('hi there, everyone!')
              4 CALL_FUNCTION            1
              6 POP_TOP
              8 LOAD_CONST               0 (None)
             10 RETURN_VALUE

tk.py

import tkinter as tk

class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.create_widgets()

    def create_widgets(self):
        self.hi_there = tk.Button(self)
        self.hi_there["text"] = "Hello World\n(click me)"
        self.hi_there["command"] = self.say_hi
        self.hi_there.pack(side="top")

        self.quit = tk.Button(self, text="QUIT", fg="red",
                              command=self.master.destroy)
        self.quit.pack(side="bottom")

    def say_hi(self):
        print("hi there, everyone!")

root = tk.Tk()
app = Application(master=root)
app.mainloop()