Introduce Enums for telegram.constants (#2708)

examples/chatmemberbot.py

@@ -14,7 +14,8 @@ bot.
 import logging
 from typing import Tuple, Optional
 
-from telegram import Update, Chat, ChatMember, ParseMode, ChatMemberUpdated
+from telegram import Update, Chat, ChatMember, ChatMemberUpdated
+from telegram.constants import ParseMode
 from telegram.ext import (
     CommandHandler,
     ChatMemberHandler,

examples/contexttypesbot.py

@@ -13,7 +13,8 @@ bot.
 from collections import defaultdict
 from typing import DefaultDict, Optional, Set
 
-from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup, ParseMode
+from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
+from telegram.constants import ParseMode
 from telegram.ext import (
     CommandHandler,
     CallbackContext,
@@ -57,7 +58,7 @@ class CustomContext(CallbackContext[ExtBot, dict, ChatData, dict]):
     def message_clicks(self, value: int) -> None:
         """Allow to change the count"""
         if not self._message_id:
-            raise RuntimeError('There is no message associated with this context obejct.')
+            raise RuntimeError('There is no message associated with this context object.')
         self.chat_data.clicks_per_message[self._message_id] = value
 
     @classmethod

examples/deeplinking.py

@@ -20,7 +20,8 @@ bot.
 
 import logging
 
-from telegram import ParseMode, InlineKeyboardMarkup, InlineKeyboardButton, Update, helpers
+from telegram import InlineKeyboardMarkup, InlineKeyboardButton, Update, helpers
+from telegram.constants import ParseMode
 from telegram.ext import (
     CommandHandler,
     CallbackQueryHandler,

examples/errorhandlerbot.py

@@ -8,7 +8,8 @@ import json
 import logging
 import traceback
 
-from telegram import Update, ParseMode
+from telegram import Update
+from telegram.constants import ParseMode
 from telegram.ext import CommandHandler, Updater, CallbackContext
 
 # Enable logging

examples/inlinebot.py

@@ -15,7 +15,8 @@ bot.
 import logging
 from uuid import uuid4
 
-from telegram import InlineQueryResultArticle, ParseMode, InputTextMessageContent, Update
+from telegram import InlineQueryResultArticle, InputTextMessageContent, Update
+from telegram.constants import ParseMode
 from telegram.helpers import escape_markdown
 from telegram.ext import Updater, InlineQueryHandler, CommandHandler, CallbackContext
 

examples/pollbot.py

@@ -11,13 +11,13 @@ import logging
 
 from telegram import (
     Poll,
-    ParseMode,
     KeyboardButton,
     KeyboardButtonPollType,
     ReplyKeyboardMarkup,
     ReplyKeyboardRemove,
     Update,
 )
+from telegram.constants import ParseMode
 from telegram.ext import (
     CommandHandler,
     PollAnswerHandler,