PIP Could not find any downloads that satisfy the requirement SQLAlchemy

问题

Ubuntu 12.04
Apache 2.2.22

pip has stopped working on my ubuntu server and gives the below error when I try to download anything.

$ sudo pip install SQLAlchemy
Downloading/unpacking SQLAlchemy
  Cannot fetch index base URL http://pypi.python.org/simple/
  Could not find any downloads that satisfy the requirement SQLAlchemy
No distributions at all found for SQLAlchemy
Storing complete log in /home/user/.pip/pip.log

All of the below also do not work

$ sudo pip install --upgrade pip 
$ sudo apt-get install build-essential

My /etc/environment has the below settings which were working previously.

http_proxy="http://myproxyhere:portnumberhere/"
HTTP_PROXY="http://myproxyhere:portnumberhere/"

My /home/user/.pip

------------------------------------------------------------
/usr/bin/pip run on Sat Jun  7 20:08:38 2014
Downloading/unpacking SQLAlchemy

  Getting page http://pypi.python.org/simple/SQLAlchemy
  Could not fetch URL http://pypi.python.org/simple/SQLAlchemy: <urlopen error [Errno 111] Connection refused>
  Will skip URL http://pypi.python.org/simple/SQLAlchemy when looking for download links for SQLAlchemy
  Getting page http://pypi.python.org/simple/
  Could not fetch URL http://pypi.python.org/simple/: <urlopen error [Errno 111] Connection refused>
  Will skip URL http://pypi.python.org/simple/ when looking for download links for SQLAlchemy
  Cannot fetch index base URL http://pypi.python.org/simple/

  URLs to search for versions for SQLAlchemy:
  * http://pypi.python.org/simple/SQLAlchemy/
  Getting page http://pypi.python.org/simple/SQLAlchemy/
  Could not fetch URL http://pypi.python.org/simple/SQLAlchemy/: <urlopen error [Errno 111] Connection refused>
  Will skip URL http://pypi.python.org/simple/SQLAlchemy/ when looking for download links for SQLAlchemy
  Could not find any downloads that satisfy the requirement SQLAlchemy

No distributions at all found for SQLAlchemy

Exception information:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 126, in main
    self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 223, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 948, in prepare_files
    url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
  File "/usr/lib/python2.7/dist-packages/pip/index.py", line 152, in find_requirement
    raise DistributionNotFound('No distributions at all found for %s' % req)
DistributionNotFound: No distributions at all found for SQLAlchemy

Has anyone got any idea what might be going wrong?

回答1:

You need to fetch pypi over HTTPS, not HTTP.

For some reason your pip is configured to retrieve from http://pypi.python.org/simple/ rather than https://pypi.python.org/simple/

回答2:

Answer: upgrade pip.

I had version 1.1 installed. With sudo pip install --upgrade pip I got version 8.1.2 and the package I wanted installed properly.

回答3:

You are not using https connections, which had been used since late 2013.

You may use --index options to correct index url. See http://pip.readthedocs.org/en/latest/reference/pip_wheel.html#index-url

回答4:

You can pass a specific index url with -i:

sudo pip install SQLAlchemy -i https://pypi.python.org/simple

回答5:

Solution 1: Upgrade `pip`

sudo pip install --upgrade pip -i https://pypi.python.org/simple

then, you can use pip as:

sudo pip install SQLAlchemy

Solution 2: Specific the index URL with `-i`

sudo pip install SQLAlchemy -i https://pypi.python.org/simple

回答6:

Although it is old question, my solution may help someone.

pip install SQLAlchemy --extra-index-url=https://pypi.python.org/simple/

This works for me.

回答7:

Why dont you try pip install in super user. Type su and your password, then try sudo pip install SQLAlchemy

来源：https://stackoverflow.com/questions/24101300/pip-could-not-find-any-downloads-that-satisfy-the-requirement-sqlalchemy

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Ubuntu

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ubuntu-12.04

pip

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