我正在用python编写一个脚本，每次它运行时都会重新开始，因为我想确保删除数据库和表并重新创建它们。我遵循这个教程：https://www.fullstackpython.com/blog/postgresql-python-3-psycopg2-ubuntu-1604.html 但是matt作为一个用户做了osboxes，但是当我尝试创建表时，我得到了已经存在的错误，如果我以前删除了数据库，那怎么可能呢？

# connect to postgres
connection = psycopg2.connect(dbname="postgres", user="osboxes", password="osboxes.org", host="localhost")
connection.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
cursor = connection.cursor()
# create database to work on
name_database = "image_comparation"
cursor.execute("DROP DATABASE IF EXISTS {0};".format(name_database))
cursor.execute("CREATE DATABASE {0};".format(name_database))
name_table = "IMAGES"    
cursor.execute("DROP TABLE IF EXISTS {0};".format(name_table))
# here is the issue,  never creates the table
try:
    # cursor.execute("DROP TABLE IF EXISTS {0};".format(name_table))
    create_table_query = """CREATE TABLE {0} (IMAGE_PATH TEXT NOT NULL, IN_PROGRESS BOOLEAN, COMPLETED BOOLEAN, TIME_PROCESS REAL, CREATED_TIME timestamp, MATCHES TEXT NULL, MOVED BOOLEAN);""".format(name_table)
    cursor.execute(create_table_query)
    connection.commit()
except psycopg2.DatabaseError as e:
    print(f'Error {e}')

错误关系“images”已存在
我第一次运行脚本的时候，告诉我这个关系allready存在，所以我评估了这个表是如何持久的，所以我签入了cmd

psql (12.3 (Ubuntu 12.3-1.pgdg18.04+1), server 12.2 (Ubuntu 12.2-4))
Type "help" for help.
image_db=> \dt
Did not find any relations.
image_db=>

然后，我手动将create table查询复制到psql中，工作正常。我错过了什么？