在Mac OS X上安装libpq-dev

Question

我正在尝试在我的本地Mac OS X上运行带有Postgresql后端的Django.我已经使用pip安装了Django:

sudo pip install Django

我已经安装PostgreSQL用于二进制安装程序之一在这里.

但是当我尝试安装psycopg2时,我得到一个错误(粘贴在下面),它找不到pg_config.

从这个问题看来我应该安装,libpq-dev但我不确定如何.

我尝试libpqxx使用MacPorts 安装,但是没有做任何事情.

如何安装libpg-dev？或者还有其他我想念的东西？

henrietta:~ $ pip install psycopg2
Downloading/unpacking psycopg2
  Downloading psycopg2-2.4.5.tar.gz (719Kb): 719Kb downloaded
  Running setup.py egg_info for package psycopg2
    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 /Users/thomas/.pip/pip.log

Answer 1

对于OSX 10.9.2 Mavericks来说,这对我有用.尝试先用brew安装postgres:

brew install postgresql

然后安装pg

gem install pg

Answer 2

所以我最终遵循这里的建议:

http://blog.jonypawks.net/2008/06/20/installing-psycopg2-on-os-x/

结果我确实pg-config安装了,但我不得不四处寻找它.一旦我把它包括在路径中,一切都在游泳.这是该链接的片段:

PATH=$PATH:/Library/PostgresPlus/8.3/bin/ sudo easy_install psycopg2

我使用pip而不是easy_install和我的PostgreSQL安装目录略有不同,但这是要点.

Answer 3

只需从源代码安装 postgres 即可。我在 Mac OS X 上这样做。它很简单：

./configure 
make
sudo make install

当然，您可能需要额外的步骤，例如自动启动或设置配置选项，但我相信这仍然是 Mac OS X 上最轻松的设置方法。

如果您出于某种原因想避免从源代码安装，您应该寻找 psycopg2 的二进制版本，例如： http: //www.initd.org/psycopg/download/

sudo port install py27-psycopg2