phycopg2のインストール失敗

phycopg2 がインストールできない

Macで仮想環境pynvを使ってます。

  Using cached https://files.pythonhosted.org/packages/84/d7/6a93c99b5ba4d4d22daa3928b983cec66df4536ca50b22ce5dcac65e4e71/psycopg2-2.8.4.tar.gz
    ERROR: Command errored out with exit status 1:
     command: /Users/tsusanyouki/.local/share/virtualenvs/python_line-k31V5Mgf/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/setup.py'"'"'; __file__='"'"'/private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info
         cwd: /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/
    Complete output (23 lines):
    running egg_info
    creating /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info/psycopg2.egg-info
    writing /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info/psycopg2.egg-info/PKG-INFO
    writing dependency_links to /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info/psycopg2.egg-info/dependency_links.txt
    writing top-level names to /private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info/psycopg2.egg-info/top_level.txt
    writing manifest file '/private/var/folders/4v/77hl6z0d04s9rfp2c7pjymw00000gn/T/pip-install-8huffuva/psycopg2/pip-egg-info/psycopg2.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>).
    
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

こんなエラー。

解決策

brew install postgresql

これで解決した！