点子不能安装任何东西

Question

> pip install yolk
Downloading/unpacking yolk
  Cannot fetch index base URL https://pypi.python.org/simple/
  Could not find any downloads that satisfy the requirement yolk
No distributions at all found for yolk
Storing complete log in /Users/harith/.pip/pip.log

当我阅读文件时，我看到

> cat /Users/harith/.pip/pip.log
------------------------------------------------------------
/Users/harith/.shared/virtualenvs/pennytracker/bin/pip run on Mon Jul  1 20:26:02 2013
Downloading/unpacking yolk

  Getting page https://pypi.python.org/simple/yolk/
  Could not fetch URL https://pypi.python.org/simple/yolk/: HTTP Error 503: Service Unavailable
  Will skip URL https://pypi.python.org/simple/yolk/ when looking for download links for yolk
  Getting page https://pypi.python.org/simple/
  Could not fetch URL https://pypi.python.org/simple/: HTTP Error 503: Service Unavailable
  Will skip URL https://pypi.python.org/simple/ when looking for download links for yolk
  Cannot fetch index base URL https://pypi.python.org/simple/

  URLs to search for versions for yolk:
  * https://pypi.python.org/simple/yolk/
  Getting page https://pypi.python.org/simple/yolk/
  Could not fetch URL https://pypi.python.org/simple/yolk/: HTTP Error 503: Service Unavailable
  Will skip URL https://pypi.python.org/simple/yolk/ when looking for download links for yolk
  Could not find any downloads that satisfy the requirement yolk

No distributions at all found for yolk

    Exception information:
    Traceback (most recent call last):
      File "/Users/harith/.shared/virtualenvs/pennytracker/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/basecommand.py", line 139, in main
        status = self.run(options, args)
      File "/Users/harith/.shared/virtualenvs/pennytracker/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/commands/install.py", line 266, in run
        requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
      File "/Users/harith/.shared/virtualenvs/pennytracker/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/req.py", line 1026, in prepare_files
        url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
      File "/Users/harith/.shared/virtualenvs/pennytracker/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/index.py", line 171, in find_requirement
        raise DistributionNotFound('No distributions at all found for %s' % req)
    DistributionNotFound: No distributions at all found for yolk

我做错什么了吗？

Answer 1

这是下面链接的博客文章的全文：

如果您最近尝试使用pip安装软件包，则可能遇到此错误：

Could not fetch URL https://pypi.python.org/simple/Django/: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
  Will skip URL https://pypi.python.org/simple/Django/ when looking for download links for Django==1.5.1 (from -r requirements.txt (line 1))
  Could not fetch URL https://pypi.python.org/simple/: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
  Will skip URL https://pypi.python.org/simple/ when looking for download links for Django==1.5.1 (from -r requirements.txt (line 1))
  Cannot fetch index base URL https://pypi.python.org/simple/
  Could not fetch URL https://pypi.python.org/simple/Django/1.5.1: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
  Will skip URL https://pypi.python.org/simple/Django/1.5.1 when looking for download links for Django==1.5.1 (from -r requirements.txt (line 1))
  Could not fetch URL https://pypi.python.org/simple/Django/: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
  Will skip URL https://pypi.python.org/simple/Django/ when looking for download links for Django==1.5.1 (from -r requirements.txt (line 1))
  Could not find any downloads that satisfy the requirement Django==1.5.1 (from -r requirements.txt (line 1))
No distributions at all found for Django==1.5.1 (from -r requirements.txt (line 1))
Storing complete log in /Users/paul/.pip/pip.log

这似乎是旧版本的OpenSSL与pip 1.3.1不兼容的问题。如果您使用的是非库存的Python发行版（特别是EPD 7.3），则很可能会设置不配合pip
1.3.1进行工作，而不会花费很多精力。

目前，最简单的解决方法是安装不需要SSL的pip 1.2.1：

curl -O https://pypi.python.org/packages/source/p/pip/pip-1.2.1.tar.gz
tar xvfz pip-1.2.1.tar.gz
cd pip-1.2.1
python setup.py install

如果您使用的是EPD，而不是在可能会发生问题的课堂上使用它，则可能需要考虑安装新的化身：有思想的树冠。我知道他们知道由先前版本的OpenSSL引起的问题，并且可以想象他们现在正在使用一个新版本，该版本应与pip
1.3.1配合使用。