Very Short Demo Program that saves the last value entered into Input element that is then used as the default in the future.

DemoPrograms/Demo_Input_Save_Last_Used_Entry_In_User_Settings.py

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+import PySimpleGUI as sg
+
+"""
+    Demo - Save previously entered value in Input element by using user_settings calls
+
+    Tired of typing in the same value or entering the same filename into an Input element?
+    If so, this may be exactly what you need.
+    
+    It simply saves the last value you entered so that the next time you start your program, that will be the default
+
+    Copyright 2022 PySimpleGUI.org
+"""
+
+
+def main():
+    sg.user_settings_filename(path='.')  # The settings file will be in the same folder as this program
+
+    layout = [[sg.T('This is your layout')],
+              [sg.T('Remembers last value for this:'), sg.In(sg.user_settings_get_entry('-input-', ''), k='-INPUT-')],
+              [sg.OK(), sg.Button('Exit')]]
+
+    # make a window, read it, and automatically close after 1 event happens (button or X to close window)
+    event, values = sg.Window('Save Input Element Last Value', layout).read(close=True)
+
+    # only save the value if OK was clicked
+    if event == 'OK':
+        sg.user_settings_set_entry('-input-', values['-INPUT-'])
+
+if __name__ == '__main__':
+    main()
+