Unicodedecodeerror In Pip Install Flake8 On Windows 8.1

I'm trying to install the flake8 module for Python (in order to use the SublimeLinter-flake8 package to Sublime Text 3) but get an error message on install (below). What am I doing

Solution 1:

After startlingly generous help from Padraic, we eventually figured out that the problem was my computer name, which was Fredrik-Bärbar (notice the ä, i.e. 0xe4 in code page 850, there in the 10th place, or 9th place using Python's 0-based indexing).

(This error is related to that in Pip Error when installing, another question solved by Padraic.)