import logging

LOGGER = logging.getLogger()

try:
    {}["not_present"]
except Exception as exc:
    LOGGER.error(exc)        # только сообщение об ошибке
    # -> 'not_present'

try:
    {}["not_present"]
except Exception as exc:
    LOGGER.exception(exc)    # сообщение + traceback
    # -> 'not_present'
    # Traceback (most recent call last):
    #   File "my_module.py", line 12, in <module>
    # KeyError: 'not_present'

1. https://www.pythonchallenge.com/
2. https://www.hackerrank.com/domains/python
3. https://www.hackerearth.com/practice/python/getting-started/numbers/practice-problems/
4. https://learnpython.org/
5. https://www.w3schools.com/python/python_exercises.asp
6. https://codingbat.com/python
7. https://pythonbasics.org/exercises/
8. https://www.geeksforgeeks.org/python-programming-language/learn-python-tutorial

import time
import sys

spinner = ['|', '/', '-', '\\']
while True:
    for frame in spinner:
        sys.stdout.write('\r' + frame)
        sys.stdout.flush()
        time.sleep(0.1)

pip install mssql-python

import mssql_python

# Установить соединение
# Указать строку подключения
connection_string = "YOUR_CONNECTION_STRING"
connection = mssql_python.connect(connection_string)

# Выполнить запрос
cursor = connection.cursor()
cursor.execute("SELECT * from customer")
rows = cursor.fetchall()

for row in rows:
    print(row)

# Закрыть соединение
connection.close()