Error on installation with pip

[pylint-bot]

Originally reported by: sebastien charret (BitBucket: SebCharret)

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Hi all,

I try to install pylint on my virtualenv and I have the following error.

#!python

# pip3 install pylint
 Collecting pylint
  Using cached pylint-1.4.3-py2.py3-none-any.whl
 Collecting logilab-common>=0.53.0 (from pylint)
  Using cached logilab-common-0.63.2.tar.gz
    /usr/lib/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'test_require'
      warnings.warn(msg)
    package init file './test/__init__.py' not found (or not a regular file)
Requirement already satisfied (use --upgrade to upgrade): six in /home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages (from pylint)
Collecting astroid>=1.3.6 (from pylint)
  Exception:
  Traceback (most recent call last):
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/basecommand.py", line 232, in main
      status = self.run(options, args)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/commands/install.py", line 339, in run
      requirement_set.prepare_files(finder)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/req/req_set.py", line 333, in prepare_files
      upgrade=self.upgrade,
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/index.py", line 305, in find_requirement
      page = self._get_page(main_index_url, req)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/index.py", line 783, in _get_page
      return HTMLPage.get_page(link, req, session=self.session)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/index.py", line 872, in get_page
      "Cache-Control": "max-age=600",
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/requests/sessions.py", line 473, in get
      return self.request('GET', url, **kwargs)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/download.py", line 365, in request
      return super(PipSession, self).request(method, url, *args, **kwargs)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/requests/sessions.py", line 461, in request
      resp = self.send(prep, **send_kwargs)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/requests/sessions.py", line 573, in send
      r = adapter.send(request, **kwargs)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/cachecontrol/adapter.py", line 36, in send
      cached_response = self.controller.cached_request(request)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/cachecontrol/controller.py", line 100, in cached_request
      resp = self.serializer.loads(request, self.cache.get(cache_url))
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/cachecontrol/serialize.py", line 62, in loads
      return getattr(self, "_loads_v{0}".format(ver))(request, data)
    File "/home/sebastien/.virtualenvs/pyMarket3.4/lib/python3.4/site-packages/pip/_vendor/cachecontrol/serialize.py", line 91, in _loads_v1
      body = io.BytesIO(cached["response"].pop("body"))
  TypeError: 'str' does not support the buffer interface

My os:
Linux version 3.13.0-53-generic (buildd@phianna) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #89-Ubuntu SMP Wed May 20 10:34:39 UTC 2015
Python: 3.4.0

Thanks for the help.

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• Bitbucket: https://bitbucket.org/logilab/astroid/issue/105

[pylint-bot]

Original comment by Florian Bruhin (BitBucket: The-Compiler, GitHub: @The-Compiler?):

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This looks like a pip rather than a astroid problem - it show that before astroid is even downloaded:

pypa/pip#2481
pypa/pip#2317
pypa/pip#2460

[pylint-bot]

Original comment by sebastien charret (BitBucket: SebCharret):

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@florian Bruhin You were right, it was a pip outdated problem. Thanks for your help.