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psycopg2安装两个版本的python

[英]psycopg2 install for two versions of python

原文 2013-02-22 12:54:43 6 3 python/ psycopg2

I have a fresh debian install with : 我有一个新的debian安装：
+ default 2.6.6 python installed +默认安装2.6.6 python
+ also installed python3 at /opt/python3/ +还在/opt/python3/安装了python3
+ installed psycopg2 +已安装psycopg2

Problem : 问题：
>>> import psycopg2
works with standard python 适用于标准python
but not the alternate python /opt/python3/bin/python3 . 但不是备用的python /opt/python3/bin/python3 。
I presume it is an import path problem, but I don't know how to solve it being a newbie on python. 我认为这是一个导入路径问题，但我不知道如何解决它作为python上的新手。

3 个解决方案

You need to install psycopg2 separately for your Python 3 installation. 您需要为Python 3安装单独安装psycopg2 。

You need to follow the installation instructions for installing from source , using pip or easy_install will be easiest (provided you have the libpq-dev debian package installed). 您需要按照安装说明从源代码安装，使用pip或easy_install将是最简单的（如果您安装了libpq-dev debian软件包）。

You cannot reuse the system-installed psycopg2 because that'll only work on Python 2. 你不能重用系统安装的psycopg2因为它只适用于Python 2。

I had the same issue and installing the python3 include files sorted the issue (while in the active virtualenv) 我有同样的问题，安装python3包含文件排序问题（在活动的virtualenv）

sudo apt-get install python3-dev as per solution provided in this post sudo apt-get install python3-dev按照本文提供的解决方案

Psycopg2 fails to install on python 3 with pip issuing a fatal error Psycopg2无法在python 3上安装，pip发出致命错误

So I recap for the record and any one stumbing on this 所以我回顾一下这个记录和任何一个令人讨厌的事情
1. Install virtualenv. 1.安装virtualenv。 instructions here 这里的说明
2. Install pip for your version, in my case it was pip-3.3 instructions here in order to get distribute_setup.py and get-pip.py 2.为你的版本安装pip，在我的例子中，这是pip-3.3 指令，以获得distribute_setup.py和get-pip.py
3. enjoy > pip-3.3 install psycopg2 3.享受> pip-3.3 install psycopg2