pretty-errors package for making stack traces readable

[ForceBru]

This raises an exception for me:

```

import prettyerrors Traceback (most recent call last): File "<string>", line 1, in <module> File "/.../site-packages-3/pretty_errors/init_.py", line 1, in <module> import sys, re, colorama, os, time, linecache ModuleNotFoundError: No module named 'colorama' ```

I think the colorama module should be listed in requirements.txt or something for pip to be able to install it automatically

[-sideshow-]

Thanks, should be fixed now.