I understand your reply about Python 2.7 and Python 3 The case is, the problem is not connected with Python 2.7 only. petr@husova:~$ python3 Python 3.6.9 (default, Apr 18 2020, 01:56:04) [GCC 8.4.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import sqlite3 >>> sqlite3.sqlite_version '3.22.0' >>> print(sqlite3.__file__) /usr/lib/python3.6/sqlite3/__init__.py