Unicorn Hat HD install problems

Trying to install the s/w for the uncorn hat hd with the latest rasbian and updates (SD card built today, on a RPi 2) using the all encompassing script I get errors… log file below:-

/usr/bin/pip2 run on Mon Apr 10 10:44:52 2017
Downloading/unpacking unicornhathd
Getting page https://pypi.python.org/simple/unicornhathd/
Cleaning up…
Traceback (most recent call last):
File “/usr/lib/python2.7/dist-packages/pip/basecommand.py”, line 122, in main
status = self.run(options, args)
File “/usr/lib/python2.7/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/python2.7/dist-packages/pip/req.py”, line 1178, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File “/usr/lib/python2.7/dist-packages/pip/index.py”, line 194, in find_requirement
page = self._get_page(main_index_url, req)
File “/usr/lib/python2.7/dist-packages/pip/index.py”, line 568, in _get_page
File “/usr/lib/python2.7/dist-packages/pip/index.py”, line 694, in get_page
req, link, “connection error: %s” % exc, url,
TypeError: str returned non-string (type Error)

I had this error and solved it by realising I was running an explorer hat in the background. You should also reboot and check nothing else is connected to the pi.

Nothing else connected and have rebooted several times!

Install now works… no idea of what changed!