如何解决sqlalchemy，尝试连接到本地数据库
我有点知道，所以我不知道如何找到解决此类错误的方法。正在尝试连接到本地数据库。
from sqlalchemy import create_engine
rds_connection_string = "postgres:password@localhost:5432/ETL_DATABASES"
engine = create_engine(f'postgresql://{rds_connection_string}')
并得到：
--------------------------------------------------------------------------- ImportError Traceback (most recent call last) <ipython-input-12-db09b1b74d73> in <module>
1 rds_connection_string = "postgres:password@localhost:5432/ETL_DATABASES"
----> 2 engine = create_engine(f'postgresql://{rds_connection_string}')
/opt/anaconda3/lib/python3.8/site-packages/sqlalchemy/engine/__init__.py in create_engine(*args,**kwargs)
498 strategy = kwargs.pop("strategy",default_strategy)
499 strategy = strategies.strategies[strategy]
--> 500 return strategy.create(*args,**kwargs)
501
502
/opt/anaconda3/lib/python3.8/site-packages/sqlalchemy/engine/strategies.py in create(self,name_or_url,**kwargs)
85 if k in kwargs:
86 dbapi_args[k] = pop_kwarg(k)
---> 87 dbapi = dialect_cls.dbapi(**dbapi_args)
88
89 dialect_args["dbapi"] = dbapi
/opt/anaconda3/lib/python3.8/site-packages/sqlalchemy/dialects/postgresql/psycopg2.py in dbapi(cls)
776 @classmethod
777 def dbapi(cls):
--> 778 import psycopg2
779
780 return psycopg2
/opt/anaconda3/lib/python3.8/site-packages/psycopg2/__init__.py in <module>
49 # Import the DBAPI-2.0 stuff into top-level module.
50
---> 51 from psycopg2._psycopg import ( # noqa
52 BINARY,NUMBER,STRING,DATETIME,ROWID,53
ImportError: dlopen(/opt/anaconda3/lib/python3.8/site-packages/psycopg2/_psycopg.cpython-38-darwin.so,2): Symbol not found: _PQencryptPasswordConn
Referenced from: /opt/anaconda3/lib/python3.8/site-packages/psycopg2/_psycopg.cpython-38-darwin.so
Expected in: /usr/lib/libpq.5.6.dylib in /opt/anaconda3/lib/python3.8/site-packages/psycopg2/_psycopg.cpython-38-darwin.so
我在 jupyter notebook 中，并且在 sql 部分使用 pg Admin 4
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