try_except_for_tgBot

Python/TeleBot/config.py

@@ -2,3 +2,4 @@ hostname = "localhost"
 databname = "PythonDB"
 username = "postgres"
 passw = "Q1w2e3r4"
+api = "6285042955:AAEPprYo9K7Ta0RkDcoqO2Z4Ejdw8to1NX0"

Python/TeleBot/tableCreator.py

@@ -3,22 +3,31 @@ import wget
 import parser
 import config
 
+
 connection = psycopg2.connect(host=config.hostname, dbname=config.databname, user=config.username, password=config.passw)
 cursor = connection.cursor()
-
 creat_qwery = """ create table Parser 
     (id serial primary key, page_name varchar(100), price varchar(10), priceDis varchar(30), mark varchar(10), scr varchar(100))"""
+# cursor.execute(creat_qwery)
+# connection.commit()
+try:
+    cursor.execute(creat_qwery)
+    connection.commit()
+except psycopg2.errors.DuplicateTable:
+    print("s")
+
 
-cursor.execute(creat_qwery)
-connection.commit()
 for i in range(15):
     print(i)
     url = 'https://amwine.ru' + parser.pictures[i].find('a').find('img').attrs['data-src']
     filename = f"Python\\TeleBot\img\{i}.jpg"
     wget.download(url, filename)
+    try:
         ins_qwery = f"""insert into public.Parser(page_name, price, priceDis, mark, scr) values ('{parser.name[i].text}', '{parser.price[i].text}', '{parser.priceDis[i].text}',  '{parser.mark[i].text}', '{filename}')"""
         cursor.execute(ins_qwery)
         connection.commit()
+    except:
+        connection.rollback()
 
 cursor.close()
 

Python/TeleBot/tgBot.py

@@ -3,16 +3,21 @@ import psycopg2
 import config
 from telebot import types
 import random
-import tableCreator #включать лишь тогда, когда таблицы ещё нет
 
 connection = psycopg2.connect(host=config.hostname, dbname=config.databname, user=config.username, password=config.passw)
 cursor = connection.cursor()
+try:
+    sel_query = """SELECT * FROM public.parser"""
+    cursor.execute(sel_query)
+except psycopg2.errors.UndefinedTable:
+    connection.rollback()
+    import tableCreator
+    sel_query = """SELECT * FROM public.parser"""
+    cursor.execute(sel_query)
      
-sel_query = """SELECT * FROM public.parser"""
-cursor.execute(sel_query)
 array = list(cursor.fetchall())
 
-bot = telebot.TeleBot('6285042955:AAEPprYo9K7Ta0RkDcoqO2Z4Ejdw8to1NX0')
+bot = telebot.TeleBot(config.api)
 @bot.message_handler(commands=["start"])
 
 def start(m, res=False):

Work_with_files/main.py

@@ -0,0 +1,10 @@
+# Исключения
+
+try: # Указываем "опасное место"
+    2/0
+except: # Проверка на все ошибки
+    print('Абшибка')
+else: # Вывод только если нет ошибок
+    print('Абшибак нет')
+finally: # Вывод всегда
+    print('А пуфик')