global_variables.py

global_variables.py

# Created by: Mr. Coxall
# Created on: Sep 2016
# Created for: ICS3U
# This program shows the difference between local and global variables

import ui

variableX = 25

def local_button_touch_up_inside(sender):
    # shows what happen with local variable
    
    variableX = 10
    variableY = 30
    variableZ = variableX + variableY
    
    view['local_answer_label'].text = str(variableZ)
        
def global_button_touch_up_inside(sender):
    # shows what happen with global variable
    
    global variableX
    variableY = 30
    variableZ = variableX + variableY
    
    view['global_answer_label'].text = str(variableZ)

view = ui.load_view()
view.present('full_screen')

global_variables.pyui

[
  {
    "selected" : false,
    "frame" : "{{0, 0}, {1024, 768}}",
    "class" : "View",
    "nodes" : [
      {
        "selected" : false,
        "frame" : "{{47, 50}, {140, 32}}",
        "class" : "Button",
        "nodes" : [

        ],
        "attributes" : {
          "action" : "local_button_touch_up_inside",
          "frame" : "{{472, 368}, {80, 32}}",
          "title" : "Local Variable",
          "uuid" : "1BF98976-693A-4EFD-9433-28132C5618CB",
          "class" : "Button",
          "name" : "local_button",
          "font_size" : 15
        }
      },
      {
        "selected" : true,
        "frame" : "{{47, 115}, {140, 32}}",
        "class" : "Button",
        "nodes" : [

        ],
        "attributes" : {
          "action" : "global_button_touch_up_inside",
          "frame" : "{{472, 368}, {80, 32}}",
          "title" : "Global Variable",
          "uuid" : "BF9A9062-6CBC-4B4C-8D68-6F7AF0CAD032",
          "class" : "Button",
          "name" : "global_button",
          "font_size" : 15
        }
      },
      {
        "selected" : false,
        "frame" : "{{222, 50}, {150, 32}}",
        "class" : "Label",
        "nodes" : [

        ],
        "attributes" : {
          "font_name" : "<System>",
          "frame" : "{{437, 368}, {150, 32}}",
          "uuid" : "3C90D0DA-0BF0-4C96-A486-3A420365B947",
          "class" : "Label",
          "alignment" : "left",
          "text" : "Answer:",
          "name" : "local_answer_label",
          "font_size" : 18
        }
      },
      {
        "selected" : false,
        "frame" : "{{222, 115}, {150, 32}}",
        "class" : "Label",
        "nodes" : [

        ],
        "attributes" : {
          "font_name" : "<System>",
          "frame" : "{{437, 368}, {150, 32}}",
          "uuid" : "8862EC39-2A90-4013-824E-845E8F58941D",
          "class" : "Label",
          "alignment" : "left",
          "text" : "Answer:",
          "name" : "global_answer_label",
          "font_size" : 18
        }
      }
    ],
    "attributes" : {
      "enabled" : true,
      "background_color" : "RGBA(1.000000,1.000000,1.000000,1.000000)",
      "tint_color" : "RGBA(0.000000,0.478000,1.000000,1.000000)",
      "border_color" : "RGBA(0.000000,0.000000,0.000000,1.000000)",
      "flex" : ""
    }
  }
]