Downloading/unpacking pymysql
  Getting page https://pypi.python.org/simple/pymysql/
  Could not fetch URL https://pypi.python.org/simple/pymysql/: connection error: ('Connection aborted.', OSError(97, 'Address family not supported by protocol'))
  Will skip URL https://pypi.python.org/simple/pymysql/ when looking for download links for pymysql
  Getting page https://pypi.python.org/simple/
  Could not fetch URL https://pypi.python.org/simple/: connection error: ('Connection aborted.', OSError(97, 'Address family not supported by protocol'))
  Will skip URL https://pypi.python.org/simple/ when looking for download links for pymysql
  Cannot fetch index base URL https://pypi.python.org/simple/
  URLs to search for versions for pymysql:
  * https://pypi.python.org/simple/pymysql/
  Getting page https://pypi.python.org/simple/pymysql/
  Could not fetch URL https://pypi.python.org/simple/pymysql/: connection error: ('Connection aborted.', OSError(97, 'Address family not supported by protocol'))
  Will skip URL https://pypi.python.org/simple/pymysql/ when looking for download links for pymysql
  Could not find any downloads that satisfy the requirement pymysql
Cleaning up...
No distributions at all found for pymysql
Exception information:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 290, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/usr/lib/python3/dist-packages/pip/req.py", line 1178, in prepare_files
    url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
  File "/usr/lib/python3/dist-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 pymysql