Question

我正在尝试连接到psql服务器，但不幸的是总是收到此错误。（Windows，VS代码，Python 3.7.4，psycopg2，postgresql 11）

代码部分：

import psycopg2
import json
data = json.load(open("data.json"))


conn = psycopg2.connect(database = "dictfly", user = "postgres", password = "postgres", host = "127.0.0.1", port = "5432")
print("Opened database successfully")
cur = conn.cursor()
for pair in data:
    cur.execute("ISERT INTO dict_tables VALUES (pair, data[pair])")

conn.commit()
print("Records created successfully")
conn.close()

端子

PS C:\mysite\dict> python jsonTOpgsql.py
Traceback (most recent call last):
  File "jsonTOpgsql.py", line 6, in <module>
    conn = psycopg2.connect(database = "dictfly", user = "postgres", password = "postgres0208", host = "127.0.0.1", port = "5432")
  File "C:\Users\uafir\AppData\Local\Programs\Python\Python37-32\lib\site-packages\psycopg2\__init__.py", line 126, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError
PS C:\mysite\dict>

提前谢谢！

Answer 1

我认为“数据库”不是psycopg2.connect（）的有效关键字参数。尝试改用关键字“ dbname”：

setup.py

来源：psycopg2 documentation

无法使用psycopg2连接到Postgres数据库

1 个答案: