Major update of all demo programs to use new PEP8 bindings, etc

DemoPrograms old/Demo_Chatterbot.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+import sys
+if sys.version_info[0] >= 3:
+    import PySimpleGUI as sg
+else:
+    import PySimpleGUI27 as sg
+
+from chatterbot import ChatBot
+import chatterbot.utils
+
+
+'''
+Demo_Chatterbot.py
+A GUI wrapped arouind the Chatterbot package.
+The GUI is used to show progress bars during the training process and
+to collect user input that is sent to the chatbot.  The reply is displayed in the GUI window
+'''
+
+# Create the 'Trainer GUI'
+# The Trainer GUI consists of a lot of progress bars stacked on top of each other
+sg.ChangeLookAndFeel('GreenTan')
+# sg.DebugWin()
+MAX_PROG_BARS = 20              # number of training sessions
+bars = []
+texts = []
+training_layout = [[sg.T('TRAINING PROGRESS', size=(20, 1), font=('Helvetica', 17))], ]
+for i in range(MAX_PROG_BARS):
+    bars.append(sg.ProgressBar(100, size=(30, 4)))
+    texts.append(sg.T(' ' * 20, size=(20, 1), justification='right'))
+    training_layout += [[texts[i], bars[i]],]       # add a single row
+
+training_window = sg.Window('Training').Layout(training_layout)
+current_bar = 0
+
+# callback function for training runs
+def print_progress_bar(description, iteration_counter, total_items, progress_bar_length=20):
+    global current_bar
+    global bars
+    global texts
+    global training_window
+    # update the window and the bars
+    button, values = training_window.Read(timeout=0)
+    if button is None:       # if user closed the window on us, exit
+        sys.exit(69)
+    if bars[current_bar].UpdateBar(iteration_counter, max=total_items) is False:
+        sys.exit(69)
+    texts[current_bar].Update(description)      # show the training dataset name
+    if iteration_counter == total_items:
+        current_bar += 1
+
+# redefine the chatbot text based progress bar with a graphical one
+chatterbot.utils.print_progress_bar = print_progress_bar
+
+chatbot = ChatBot('Ron Obvious', trainer='chatterbot.trainers.ChatterBotCorpusTrainer')
+
+# Train based on the english corpus
+chatbot.train("chatterbot.corpus.english")
+
+################# GUI #################
+
+layout = [[sg.Output(size=(80, 20))],
+          [sg.Multiline(size=(70, 5), enter_submits=True),
+           sg.Button('SEND', bind_return_key=True), sg.Button('EXIT')]]
+
+window = sg.Window('Chat Window', auto_size_text=True, default_element_size=(30, 2)).Layout(layout)
+
+# ---===--- Loop taking in user input and using it to query HowDoI web oracle --- #
+while True:
+    event, (value,) = window.Read()
+    if event != 'SEND':
+        break
+    string = value.rstrip()
+    print('     '+string)
+    # send the user input to chatbot to get a response
+    response = chatbot.get_response(value.rstrip())
+    print(response)