Pip install fails with “connection error:

I am very new to Python and trying to > pip install linkchecker on Windows 7. Some notes:

pip install is failing no matter the package. For example, > pip install scrapy also results in the SSL error.
Vanilla install of Python 3.4.1 included pip 1.5.6. The first thing I tried to do was install linkchecker. Python 2.7 was already installed, it came with ArcGIS. python and pip were not available from the command line until I installed 3.4.1.

Here are the contents of my pip.log after running pip install linkchecker:

Downloading/unpacking linkchecker

  Getting page //pypi.python.org/simple/linkchecker/

  Could not fetch URL //pypi.python.org/simple/linkchecker/: connection error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:598)

  Will skip URL //pypi.python.org/simple/linkchecker/ when looking for download links for linkchecker

  Getting page //pypi.python.org/simple/

  Could not fetch URL //pypi.python.org/simple/: connection error: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /simple/ (Caused by <class 'http.client.CannotSendRequest'>: Request-sent)

  Will skip URL //pypi.python.org/simple/ when looking for download links for linkchecker

  Cannot fetch index base URL  //pypi.python.org/simple/

  URLs to search for versions for linkchecker:

  *  //pypi.python.org/simple/linkchecker/

  Getting page  //pypi.python.org/simple/linkchecker/

  Could not fetch URL //pypi.python.org/simple/linkchecker/: connection error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:598)

  Will skip URL //pypi.python.org/simple/linkchecker/ when looking for download links for linkchecker

  Could not find any downloads that satisfy the requirement linkchecker

Cleaning up...

  Removing temporary dir C:\Users\jcook\AppData\Local\Temp\pip_build_jcook...

No distributions at all found for linkchecker

Exception information:

Traceback (most recent call last):

  File "C:\Python34\lib\site-packages\pip\basecommand.py", line 122, in main

    status = self.run(options, args)

  File "C:\Python34\lib\site-packages\pip\commands\install.py", line 278, in run

    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)

  File "C:\Python34\lib\site-packages\pip\req.py", line 1177, in prepare_files

    url = finder.find_requirement(req_to_install, upgrade=self.upgrade)

  File "C:\Python34\lib\site-packages\pip\index.py", line 277, in find_requirement

    raise DistributionNotFound('No distributions at all found for %s' % req)

pip.exceptions.DistributionNotFound: No distributions at all found for linkchecker