我已经安装了 PostgreSQL。我想我需要在 windows 上安装 libpq-dev 来解决这个问题，但是如何安装呢？
命令 python setup.py egg_info 的完整输出：运行 egg_info 创建 pip-egg-info\psycopg2_binary.egg-info 写入 pip-egg-info\psycopg2_binary.egg-info\PKG-INFO 写入 dependency_links 到 pip-egg-info\psycopg2_binary .egg-info\dependency_links.txt 将顶级名称写入 pip-egg-info\psycopg2_binary.egg-info\top_level.txt 写入清单文件 'pip-egg-info\psycopg2_binary.egg-info\SOURCES.txt'
Error: pg_config executable not found.
pg_config is required to build psycopg2 from source. Please add the directory
containing pg_config to the $PATH or specify the full executable path with the
option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
If you prefer to avoid building psycopg2 from source, please install the PyPI
'psycopg2-binary' package instead.
For further information please check the 'doc/src/install.rst' file (also at
<http://initd.org/psycopg/docs/install.html>).