安装psycopg2后，我无法正确导入它

Question

当我尝试使用以下简单的代码行导入 psycopg2 时：

import psycopg2

出现以下错误：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/psycopg2/__init__.py", line 50, in <module>
    from psycopg2._psycopg import (                     # noqa
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/psycopg2/_psycopg.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libssl.1.1.dylib
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/psycopg2/_psycopg.cpython-37m-darwin.so
  Reason: image not found

有人知道为什么会发生这种情况吗？

Answer 1

我也遇到过同样的问题。在深入研究了 @singingstone 提供的线程后，对我有用的解决方案是pip uninstall psycopg2，然后pip install psycopg2-binary。