如何将代理传递给pythonbrew下载setuptools？

Question

我在一个ubuntu精确系统上安装了pythonbrew。在安装过程中使用代理出现了一些问题(请参阅an earlier post)。现在我可以安装不同版本的python并在它们之间切换，但是在python安装过程中没有安装setuptools：

ERROR: Failed to install setuptools. See /usr/local/pythonbrew/log/build.log to see why.
Skip installation of setuptools.

build.log包含：

Downloading http://pypi.python.org/packages/source/d/distribute/distribute-0.6.49.tar.gz
Traceback (most recent call last):
File "distribute_setup.py", line 556, in <module>
  sys.exit(main())
File "distribute_setup.py", line 552, in main
  tarball = download_setuptools(download_base=options.download_base)
File "distribute_setup.py", line 211, in download_setuptools
  src = urlopen(url)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 124, in urlopen
  return _opener.open(url, data, timeout)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 389, in open
  response = meth(req, response)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 502, in http_response
  'http', request, response, code, msg, hdrs)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 421, in error
  result = self._call_chain(*args)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 361, in _call_chain
result = func(*args)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 597, in http_error_302
  return self.parent.open(new)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 383, in open
  response = self._open(req, data)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 401, in _open
  '_open', req)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 361, in _call_chain
  result = func(*args)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 1138, in https_open
  return self.do_open(httplib.HTTPSConnection, req)
File "/usr/local/pythonbrew/pythons/Python-2.6/lib/python2.6/urllib2.py", line 1105, in do_open
  raise URLError(err)
urllib2.URLError: <urlopen error [Errno 110] Connection timed out>

在我看来，问题再次出现在代理上，我不确定要修改什么脚本，以便setuptools安装使用我的代理。我修改了distribute_setup.py，并在那里添加了代理信息(基于this post)，但是每次调用pythonbrew时，这个文件看起来都会被覆盖。我对python很陌生，找不到这个文件是从哪里生成的。任何关于如何将代理传递给安装的setuptools部分的指针都将受到极大的赞赏。

Answer 1

在env中设置HTTP_PROXY和HTTPS_PROXY解决了这个特殊问题(在此之后，错误从110改为113；用于后续see this other question)。