PyPy is an alternate implementation of the Python 2.7.2 interpreter. PyPy's benefits are in the area of speed, memory usage, sandboxing and stacklessness. It is compatible with Cpython with [http://pypy.org/compat.html some exceptions. PyPy also can be used to compile Rpython programs to C code.
Install the pypy package
pacman -S pypy
PyPy is located in /opt/pypy/ and the main pypy executable is /opt/pypy/pypy-c
Basic PyPy usage is done through the pypy command and functions similarly to Cpython usage. Enter
to view the listing of pypy options.
To load the pypy interactive interpreter run
Run Program From File
To run a python program from a file in pypy run
where example.py is the file name of the program.
Python libraries and programs can be installed in PyPy through EasyInstall. PyPy libraries are stored in a different folder then Cpython libraries.
EasyInstall does not come with the PyPy package and must be installed manually. Create the /opt/pypy/site-packages/ folder which will be needed for the EasyInstall installation.
sudo mkdir /opt/pypy/site-packages/
Download distribute_setup.py to the folder /opt/pypy/ and run it. distribute_setup.py will install EasyInstall.
cd /opt/pypy/ sudo wget python-distribute.org/distribute_setup.py sudo pypy distribute_setup.py
EasyInstall is located at /opt/pypy/bin/easy_install
Installing EasyInstall Packages
To install EasyInstall package package_name into PyPy enter
sudo /opt/pypy/bin/easy_install package_name
Packages Will be Located at
Installed libraries and applications will be at
Programs installed through EasyInstall on PyPy can usually be ran with
/opt/pypy/bin/program_name where program_name is the name of the PyPy program.
EasyInstall Package Example
The following will install the Lamson email framework.
sudo /opt/pypy/bin/easy_install lamson
The following will run the framework's gen-project option
/opt/pypy/bin/lamson gen -project testproject