git-explode requires git-deps, which requires pygit2, which in return requires libgit2. These dependencies can potentially make installation slightly tricky in some cases, but if you manage to get git-deps installed and working, then it is very likely that git-explode will install on top with no extra problems.

Therefore the recommended installation procedure is to first follow the instructions for installing git-deps, and then install git-explode on top via the same technique you used to install git-deps, which is typically a standard Python module installation technique. So for example if you installed git-deps system-wide on Linux via:

sudo pip install git-deps

then you should repeat that technique for git-explode:

sudo pip install git-explode

Similarly if you installed git-deps just for the current user via:

pip install --user git-deps

then repeat that for git-explode:

pip install --user git-explode

If you encounter problems, please report them!