PySimpleGUI/DemoPrograms/Demo_Chat_With_History.py at master · PySimpleGUI/PySimpleGUI · GitHub

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#!/usr/bin/env python

import PySimpleGUI as sg

'''

A chatbot with history

Scroll up and down through prior commands using the arrow keys

Special keyboard keys:

Up arrow - scroll up in commands

Down arrow - scroll down in commands

Escape - clear current command

Control C - exit form

'''

def ChatBotWithHistory():

# ------- Make a new Window ------- #

# give our form a spiffy set of colors

sg.theme('GreenTan')

layout = [[sg.Text('Your output will go here', size=(40, 1))],

[sg.Output(size=(127, 30), font=('Helvetica 10'))],

[sg.Text('Command History'),

sg.Text('', size=(20, 3), key='history')],

[sg.ML(size=(85, 5), enter_submits=True, key='query', do_not_clear=False),

sg.Button('SEND', button_color=(sg.YELLOWS[0], sg.BLUES[0]), bind_return_key=True),

sg.Button('EXIT', button_color=(sg.YELLOWS[0], sg.GREENS[0]))]]

window = sg.Window('Chat window with history', layout,

default_element_size=(30, 2),

font=('Helvetica', ' 13'),

default_button_element_size=(8, 2),

return_keyboard_events=True)

# ---===--- Loop taking in user input and using it --- #

command_history = []

history_offset = 0

while True:

event, value = window.read()

if event == 'SEND':

query = value['query'].rstrip()

# EXECUTE YOUR COMMAND HERE

print('The command you entered was {}'.format(query))

command_history.append(query)

history_offset = len(command_history)-1

# manually clear input because keyboard events blocks clear

window['query'].update('')

window['history'].update('\n'.join(command_history[-3:]))

elif event in (sg.WIN_CLOSED, 'EXIT'): # quit if exit event or X

break

elif 'Up' in event and len(command_history):

command = command_history[history_offset]

# decrement is not zero

history_offset -= 1 * (history_offset > 0)

window['query'].update(command)

elif 'Down' in event and len(command_history):

# increment up to end of list

history_offset += 1 * (history_offset < len(command_history)-1)

command = command_history[history_offset]

window['query'].update(command)

elif 'Escape' in event:

window['query'].update('')

ChatBotWithHistory()

PySimpleGUI/DemoPrograms/Demo_Chat_With_History.py at master · PySimpleGUI/PySimpleGUI · GitHub

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