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picture1_Python Gui Pdf 192114 | Gui Item Download 2023-02-05 17-46-18


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File: Python Gui Pdf 192114 | Gui Item Download 2023-02-05 17-46-18
graphicaluserinterfaces gui tkinter python shell primitive calculator py accumulator 0 select accumulator 0 1 clear 2 add while true 3 subtract 4 multiply print accumulator accumulator 5 quit print select ...

icon picture PDF Filetype PDF | Posted on 05 Feb 2023 | 2 years ago
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               Graphicaluserinterfaces (GUI)
                Tkinter
                                                                           Python shell
              primitive_calculator.py                                      Accumulator: 0
                                                                           Select:
              accumulator = 0                                                1: clear
                                                                             2: add
              while True:                                                    3: subtract
                                                                             4: multiply
                  print("Accumulator:", accumulator)                         5: quit
                  print("Select:")                                         Choice: 2
                  print("  1: clear")                                      add: 10
                                                                           Accumulator: 10
                  print("  2: add")                                        Select:
                  print("  3: subtract")                                     1: clear
                  print("  4: multiply")                                     2: add
                  print("  5: quit")                                         3: subtract
                                                                             4: multiply
                                                                             5: quit
                  choice = int(input("Choice: "))                          Choice: 2
                                                                           add: 15
                                                                           Accumulator: 25
                  if choice == 1: accumulator = 0                          Select:
                  if choice == 2: accumulator += int(input("add: "))       ...
                  if choice == 3: accumulator -= int(input("subtract: "))
                  if choice == 4: accumulator *= int(input("multiply by: "))
                  if choice == 5: break
       Python GUI’s (Graphical Users Interfaces)
        There is a long list of GUI frameworks and toolkits, designer tools
           • we will only briefly look at Tkinter
        GUI are, opposed to a text terminal,
          easier to use, more intuitive and flexible
        Windows, icons, menus, buttons, scrollbards
          mouse / touch / keyboard interaction etc.
        Operating system (e.g. Windows, maxOS, iOS, 
          Linux, Android) provides basic functionality
          in particular a windows manager
        Writing GUI applications from scratch can be         en.wikipedia.org/wiki/Colossal_Cave_Adventure
          painful – frameworks try to provide all standard 
          functionality
                                                             wiki.python.org/moin/GuiProgramming
                       BackSlashLinux GUI
                      www.backslashlinux.com
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