pypy-dev software package provides header files for PyPy (an alternative Python interpreter), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install pypy-dev
pypy-dev is installed in your system.
Make ensure the pypy-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep pypy-dev *
You will get with pypy-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Python |
| Package | pypy-dev |
| Version | 2.2.1+dfsg-1 |
| Description | header files for PyPy (an alternative Python interpreter) |
| Sub Section | Python |