Question

为了安装OpenGnSys，我们需要运行脚本然后调用python脚本。这个python脚本给出以下错误：

[root@custrohitkr opengnsys2-web]# ./db.py 
postgresql://opengnsys:opengnsys@localhost/opengnsys
Traceback (most recent call last):
  File "./db.py", line 88, in <module>
    create()
  File "./db.py", line 81, in create
    db = create_engine(database, echo=False)
  File "/usr/lib/python2.6/site-packages/sqlalchemy/engine/__init__.py", line 223, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/sqlalchemy/engine/strategies.py", line 48, in create
    dialect_cls = u.get_dialect()
  File "/usr/lib/python2.6/site-packages/sqlalchemy/engine/url.py", line 91, in get_dialect
    module = getattr(__import__('sqlalchemy.databases.%s' % self.drivername).databases, self.drivername)
ImportError: No module named postgresql

在网上搜索后，我发现应为psycopg2安装模块postgesql。但就我而言，它已经存在了。可能是什么问题？

Answer 1

Are we talking about a misconfiguration of the url

postgresql://opengnsys:opengnsys@localhost/opengnsys

vs

postgresql+psycopg2://scott:tiger@localhost/mydatabase

Answer 2

尝试指定端口号，即3306

ImportError：没有名为postgresql的模块，已经安装了psycopg2

2 个答案: