Completely new set of materials for GUI class! Thanks Tony!!

ProgrammingClassExamples/6c PSG (search text preloaded).py

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+#PySimple examples (v 3.8)
+#Tony Crewe
+#Sep 2018
+
+import PySimpleGUI as sg
+
+sg.SetOptions (font =('Calibri',12,'bold'))
+
+#names for Demo, could be loaded from a file
+
+names = ['Roberta', 'Kylie', 'Jenny', 'Helen',
+        'Andrea', 'Meredith','Deborah','Pauline',
+        'Belinda', 'Wendy']
+name = ''
+for l in names:
+    name = name + l + '\n'
+    
+sorted_names = ['Andrea','Belinda','Deborah','Helen',
+               'Jenny','Kylie','Meredith','Pauline',
+            'Roberta','Wendy']
+
+sortname = ''
+for l in sorted_names:
+    sortname = sortname + l +'\n'
+    
+layout =[[sg.Text('Search Demo', font =('Calibri', 18, 'bold'))],
+[sg.Text(name, size = (14, 11),relief=sg.RELIEF_SOLID,font = ('Calibri', 12), background_color = 'White',key = '_display1_'),
+ sg.Text(sortname, size = (14, 11),relief=sg.RELIEF_SOLID,font = ('Calibri', 12), background_color = 'White',key = '_display2_')],
+         [sg.Text('_'*32,font = ('Calibri', 12))],
+         [sg.InputText(size = (14,1), key = '_linear_'), sg.InputText(size = (14,1), key = '_binary_')],
+          [sg.ReadButton('Linear Search', size = (13,1)), sg.ReadButton('Binary Search', size = (14,1))],
+         ]
+window = sg.Window('Search Demo').Layout(layout)
+   
+#Linear Search - no need for Ordered list
+def linear_search():
+    l = names[:]
+    found = False
+    for l in l:
+        if l == value['_linear_']:            
+            found = True
+            sg.Popup('Linear search\n' + l + ' found.')
+            break
+    if not found:
+        sg.Popup('Linear search\n' +(value['_linear_'] + ' was not found'))
+
+#Binary Search - only works for ordered lists      
+def binary_search():
+    l = sorted_names[:]                                 
+    lo = 0
+    hi = len(l)-1
+    found = False           
+    while lo <= hi:
+        mid = (lo + hi) //2     
+        if l[mid] == value['_binary_']:    
+            sg.Popup('Binary search\n' + l[mid] + ' found.')
+            found = True            
+            break                   
+        elif l[mid] < value['_binary_']:
+            lo = mid + 1            
+        else:
+            hi = mid - 1            
+    if not found:           
+        sg.Popup('Binary search\n' +(value['_binary_'] + ' was not found'))
+
+while True:
+    button, value = window.Read() 
+
+    if button is not None:  
+        if button == 'Show Names':
+            display_list(names,'_display1_')
+            display_list(sorted_names, '_display2_')
+        if button == 'Linear Search':
+            linear_search()
+        if button == 'Binary Search':
+            binary_search()
+    else:
+        break  
+