How to use SQLite 3's vacuum command in Python

Question

我在网上找不到关于如何在数据库上执行SQLite 3 vacuum命令的任何示例。

Answer 1

Just open a connection and execute the VACUUM command;

conn=sqlite3.connect(SQLITE_FILE)
conn.execute("VACUUM")
conn.close()

Answer 2

import sqlite3  

con = sqlite3.connect(<file_name>)  
..  
con.execute("VACUUM") 
.. 

Answer 3

the other solutions didn't work for me Error was "can't vacuum with transaction" or similar

here what worked for me:

    import sqlite3
    conn = sqlite3.connect('my_test.db', isolation_level=None)
    conn.execute("VACUUM")
    conn.close()