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

对于fedora用户:

Libpq-dev是依赖项之一,但是,在安装中应该这样命名这个包:libpq-devel

所以这应该解决了Fedora的问题:

sudo yum install libpq-devel

其他回答

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

对于Python 3,您应该在Debian下使用sudo apt-get install libpq-dev python3-dev。

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。

Psycopg2依赖于Postgres库。 在Ubuntu上你可以使用:

apt-get install libpq-dev

然后:

pip install psycopg2

对于fedora用户:

Libpq-dev是依赖项之一,但是,在安装中应该这样命名这个包:libpq-devel

所以这应该解决了Fedora的问题:

sudo yum install libpq-devel