Create app.py

app.py

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+import logging
+from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
+
+# Set up logging
+logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+                    level=logging.INFO)
+
+# Replace 'YOUR_BOT_TOKEN' with the token you received from BotFather
+TOKEN = '6516533220:AAEoq0ohv4xAraIw7lB7BZVHKyUg85wo3mI'
+
+# Create an Updater object to interact with the Telegram Bot API
+updater = Updater(token=TOKEN, use_context=True)
+dispatcher = updater.dispatcher
+
+# Define a command handler for the /start command
+def start(update, context):
+    context.bot.send_message(chat_id=update.effective_chat.id, text="Hello! I am your Telegram bot.")
+
+# Define a function to echo user messages
+def echo(update, context):
+    context.bot.send_message(chat_id=update.effective_chat.id, text=update.message.text)
+
+# Register the command and message handlers with the dispatcher
+start_handler = CommandHandler('start', start)
+echo_handler = MessageHandler(Filters.text & ~Filters.command, echo)
+
+dispatcher.add_handler(start_handler)
+dispatcher.add_handler(echo_handler)
+
+# Start the bot
+updater.start_polling()
+updater.idle()