我试图在Python shell中连接到PostgreSQL，但遇到了一些问题。
我正在使用Windows Subsystem for Linux。我尝试将端口更改为5433而不是5432，并尝试设置主机为“/tmp/”。但这两件事都没有起作用。
我尝试运行以下命令。
>>> import psycopg2
>>> conn = psycopg2.connect(dbname="postgres", user="postgres")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/user/anaconda3/lib/python3.6/site-packages/psycopg2/__init__.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
数据库“postgres”出现在数据库列表中：
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+---------+---------+-----------------------
postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 |
template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
我希望能够在PostgreSQL数据库中创建表，但是我似乎无法解决这个错误。