在一台服务器上安装Twisted through pip破坏

问题描述

我正在新服务器上设置一个virtualenv，当我在需求文件中使用pip时，它在Twisted上一直不行.我将Twisted线路注释掉，其他所有东西都安装好了.在命令行上，这是我尝试安装Twisted时看到的输出(一旦到达Twisted行，我便会在运行整个需求文件时看到相同的错误):

I am setting up a virtualenv on a new server, and when I used pip on our requirements file, it kept dying on Twisted. I commented the Twisted line out, and everything else installed fine. At the command line, this is the output I see when I try to install Twisted (the same error I see when I run the entire requirements file once it gets to the Twisted line):

(foo)company@server:~$ pip install twisted
Collecting twisted
  Could not find a version that satisfies the requirement twisted (from versions: )
No matching distribution found for twisted

我可以从我的开发机和其他服务器上安装Twisted fine，在该服务器上，我似乎可以安装其他软件包.

I can install Twisted fine from my dev machine and other servers, and on this server I seem to be able to install other packages fine.

大小写和版本无关紧要.如果使用扭曲"，扭曲"，扭曲== 15.2.1"，结果相同.

Case and version do not matter. Same result if I use "twisted", "Twisted", "Twisted==15.2.1".

这是运行Ubuntu 14.04.02的EC2实例.

This is an EC2 instance running Ubuntu 14.04.02.

推荐答案

好了几个小时后，我发现了问题所在.

Ok after struggling with this for several hours, I figured out the problem.

运行pip install --verbose twisted有助于诊断.

该错误消息具有误导性.问题是我没有事先安装libbz2-dev就构建了Python 2.7.10的自定义安装.因此，解决此问题的步骤是:

The error message is misleading. The problem is that I built a custom installation of Python 2.7.10 without having previously installed libbz2-dev. So the steps to fix this were:

1. sudo apt-get install libbz2-dev
2. cd /<untarred python source dir>
3. ./configure --prefix=<my install path> --enable-ipv6
4. make
5. make install

1. sudo apt-get install libbz2-dev
2. cd /<untarred python source dir>
3. ./configure --prefix=<my install path> --enable-ipv6
4. make
5. make install

完成此操作后，我现在可以创建虚拟环境并pip安装Twisted.

With this done, I can now create virtual environments and pip install Twisted.

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