How to install PyX correctly for Scappy use?

When I try to run Scappy interactive shell I am faced with this: INFO: Can't import PyX. Won't be able to use psdump() or pdfdump() (The shell is working but of course I can not use the above ^ :( However when I installed PyX I then get this error: lstat(./dvips) failed ... ./dvips: No such file or directory python: ../../../texk/kpathsea/progname.c:316: remove_dots: Assertion `ret' failed. When I uninstall PyX It then just returns to the first error has anyone had this before or does anyone know how to correct this?