NEW Demo - Using a simple technique to justify elements in a layout

DemoPrograms/Demo_Justification_Using_Expansion.py

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+import PySimpleGUI as sg
+
+"""
+    Demo Element Justification In A Window Using A Text Element That Expands
+
+    How to Justify elements on 1 row to be left, right or left, middle, right
+
+    Additionally, locate these buttons at the bottom of the screen
+
+    The key concepts to use are the newly added expand_x and expand_y
+
+    To get 2 buttons to be all the way to the left and to the far right, then
+        you want to place a text element between them that expands
+    If you want a third button that is centered, then add TWO Text elements, one
+        on each side of the middle one
+
+    Copyright 2021 PySimpleGUI
+"""
+
+
+layout = [  [sg.Text('Window with elements on the left and the right')],
+            [sg.T('Using a text element that expands enables you to "push" other elements around')],
+            [sg.HorizontalSeparator()],
+            [sg.T(expand_y=True, pad=(0,0), font='_ 1')],   # Take as little room as possible
+            [sg.Button('Left'), sg.Text(expand_x=True, pad=(0,0)), sg.Button('Right')],
+            [sg.Text(expand_x=True), sg.B('Right')],
+            [sg.Button('Left'), sg.Text(expand_x=True, pad=(0,0)), sg.B('Middle'), sg.Text(expand_x=True, pad=(0,0)),  sg.Button('Right')]  ]
+
+window = sg.Window('Left and Right Justification', layout, resizable=True)
+
+while True:
+    event, values = window.read()
+    print(event, values)
+    if event == sg.WIN_CLOSED or event == 'Exit':
+        break
+
+window.close()