Please consider adding a pip to tortoisehg installations, (especially on windows).
Created originally on Bitbucket by steve_barnes (Steve Barnes)
A number of times I have had issues with the version of python included with the windows version of thg being incompatible with the version on my system thus adding packages that are prerequisites for some extensions becomes a major exercise in frustration.
If thg installed its own version of pip which would add things to the thg installation then this would simplify things enormously.
I am not 100% sure that this is possible but it seems as if this could be a good solution for resolving this sort of issue.
I would suggest not placing it in the same directory as the default executables or renaming it to tpip so as to avoid possible conflicts with the users default installation.