能否通过本地包tar.gz fi安装python egg

Question

在我的开发环境中，由于一些网络问题，当我运行时：

(my-virt-env)$ pip install lxml

它总是失败，因为：

Downloading/unpacking lxml
  Downloading lxml-3.1.2.tar.gz (3.3Mb): 1.2Mb downloaded
Exception:
Traceback (most recent call last):
  blablabla
error: [Errno 104] Connection reset by peer

然后我从其他地方下载了lxml-3.1.2.tar.gz，并使用一个usb密钥复制它。有没有什么我可以告诉pip不用为这个包费心上网，只要通过本地tar.gz安装它？所以我可以这样做：

(my-virt-env)$ pip install ${local_path}/lxml*.tar.gz

尝试了此命令，我收到很长的错误消息：

pip install /home/shengjie/Downloads/lxml-3.1.2.tar.gz 
Unpacking /home/shengjie/Downloads/lxml-3.1.2.tar.gz
  Running setup.py egg_info for package from file:///home/shengjie/Downloads/lxml-3.1.2.tar.gz
    /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
      warnings.warn(msg)
    Building lxml version 3.1.2.
    Building without Cython.
    ERROR: /bin/sh: 1: xslt-config: not found

    ** make sure the development packages of libxml2 and libxslt are installed **
    ......................
    bla bla bla
    ......................

/tmp/pip-Vg13dM-build/src/lxml/includes/etree_defs.h:9:31: fatal error: libxml/xmlversion.h: No such file or directory

compilation terminated.

error: command 'gcc' failed with exit status 1


I am running Ubuntu, I know you can run `apt-get install python-lxml` and get it installed on your box. But that doesn't work for my case as I want install it in my virtual env: `my-virt-env`. 

Answer 1

我看到的是，它抱怨缺少libxml2和libxslt的开发版本。

对这两个包libxml2 dev和libxslt dev进行apt-get安装，然后再次执行pip安装，看看结果如何。

Answer 2

可以这样做，命令是：

pip install --no-index --find-links=file:///[absolute path to your tar.gz]