Cannot install mayavi for python 2.7

Below is the output of `pip install mayavi`
[output.txt](https://github.com/enthought/mayavi/files/2661303/output.txt)

I have tried pip3 and it works fine, but the code I want to use it in is written in 2.7, so I need this version.

The crucial bits I see are:
`[NerdBox:23388] Signal: Segmentation fault (11)`
` [NerdBox:23388] Signal code: Address not mapped (1)`
` [NerdBox:23388] Failing at address: 0x58fb4b8`
also
" "
" "
` [NerdBox:23350] Failing at address: 0x4be2bf8`
but I don't know what to do about it.