我正在使用virtualenv,我需要安装“psycopg2”。

我做了以下几点:

pip install http://pypi.python.org/packages/source/p/psycopg2/psycopg2-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160

我有以下信息:

Downloading/unpacking http://pypi.python.org/packages/source/p/psycopg2/psycopg2
-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160
  Downloading psycopg2-2.4.tar.gz (607Kb): 607Kb downloaded
  Running setup.py egg_info for package from http://pypi.python.org/packages/sou
rce/p/psycopg2/psycopg2-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160
    Error: pg_config executable not found.

    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'.
    Complete output from command python setup.py egg_info:
    running egg_info

creating pip-egg-info\psycopg2.egg-info

writing pip-egg-info\psycopg2.egg-info\PKG-INFO

writing top-level names to pip-egg-info\psycopg2.egg-info\top_level.txt

writing dependency_links to pip-egg-info\psycopg2.egg-info\dependency_links.txt

writing manifest file 'pip-egg-info\psycopg2.egg-info\SOURCES.txt'

warning: manifest_maker: standard file '-c' not found

Error: pg_config executable not found.



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'.

----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in C:\Documents and Settings\anlopes\Application Data\pip\p
ip.log

我的问题是,我只需要这样做来让psycopg2工作?

python setup.py build_ext --pg-config /path/to/pg_config build ...

当前回答

在OSX上使用macports:

sudo port install postgresql96
export PATH=/opt/local/lib/postgresql96/bin:$PATH

其他回答

运行下面的命令应该没问题

$ apt-get update
$ apt install python3-dev libpq-dev
$ pip3 install psycopg2

在Mac Mavericks与Postgres。在安装Postgres后,我需要使用以下代码:

sudo PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.3/bin pip install psycopg2 . sudo PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.3/bin

如果你用的是mac电脑,你可以使用自制软件

brew install postgresql

所有其他选项都在这里:http://www.postgresql.org/download/macosx/

在OSX上使用macports:

sudo port install postgresql96
export PATH=/opt/local/lib/postgresql96/bin:$PATH

我只在Python2中遇到过这个错误。我立即将虚拟环境升级到Python3.8,错误就不再存在了。