Try "pip install future". Idk what it does, I was adviced that this can help.
Viewing post in MurMur 0.6 public release comments
Already tried that, but it looks like RenPy ships its own version of Python 2 and doesn't use the system's one. Since I could play the compressed version, it's all good - but, on a slightly related note, would you consider adding a torrent download starting with the next version? This way it would be easier to make sure one always has the correct file without having to redownload from potentially rate-limited services. Thanks!