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Installing lupa

Building with LuaJIT2

  1. Download and unpack lupa

    http://pypi.python.org/pypi/lupa

  2. Download LuaJIT2

    http://luajit.org/download.html

  3. Unpack the archive into the lupa base directory, e.g.:

    .../lupa-0.1/LuaJIT-2.0.2

  4. Build LuaJIT:

    cd LuaJIT-2.0.2
make
cd ..

    If you need specific C compiler flags, pass them to make as follows:

    make CFLAGS="..."

    For trickier target platforms like Windows and MacOS-X, please see the official installation instructions for LuaJIT.

    NOTE: When building on Windows, make sure that lua51.lib is made in addition to lua51.dll. The MSVC build produces this file, MinGW does NOT.

  5. Build lupa:

    python setup.py build_ext -i

    Or any other distutils target of your choice, such as build or one of the bdist targets. See the distutils documentation for help, also the hints on building extension modules.

    Note that on 64bit MacOS-X installations, the following additional compiler flags are reportedly required due to the embedded LuaJIT:

    -pagezero_size 10000 -image_base 100000000

    You can find additional installation hints for MacOS-X in this somewhat unclear blog post, which may or may not tell you at which point in the installation process to provide these flags.

    Also, on 64bit MacOS-X, you will typically have to set the environment variable ARCHFLAGS to make sure it only builds for your system instead of trying to generate a fat binary with both 32bit and 64bit support:

    export ARCHFLAGS="-arch x86_64"

    Note that this applies to both LuaJIT and Lupa, so make sure you try a clean build of everything if you forgot to set it initially.

Building with Lua 5.x

It also works to use Lupa with the standard (non-JIT) Lua runtime. The easiest way is to use the bundled lua submodule:

  1. Clone the submodule:

    $ git submodule update --init third-party/lua

  2. Build Lupa:

    $ python3 setup.py bdist_wheel --use-bundle --with-cython

You can also build it by installing a Lua 5.x package, including any development packages (header files etc.). On systems that use the "pkg-config" configuration mechanism, Lupa's setup.py will pick up either LuaJIT2 or Lua automatically, with a preference for LuaJIT2 if it is found. Pass the --no-luajit option to the setup.py script if you have both installed but do not want to use LuaJIT2.

On other systems, you may have to supply the build parameters externally, e.g. using environment variables or by changing the setup.py script manually. Pass the --no-luajit option to the setup.py script in order to ignore the failure you get when neither LuaJIT2 nor Lua are found automatically.

For further information, read this mailing list post:

https://www.freelists.org/post/lupa-dev/Lupa-with-normal-Lua-interpreter-Lua-51,2

Installing lupa from packages

Debian/Ubuntu + Lua 5.2

  1. Install Lua 5.2 development package:

    $ apt-get install liblua5.2-dev

  2. Install lupa:

    $ pip install lupa

Debian/Ubuntu + LuaJIT2

  1. Install LuaJIT2 development package:

    $ apt-get install libluajit-5.1-dev

  2. Install lupa:

    $ pip install lupa

Depending on OS version, you might get an older LuaJIT2 version.

OS X + Lua 5.2 + Homebrew

  1. Install Lua:

    $ brew install lua

  2. Install pkg-config:

    $ brew install pkg-config

  3. Install lupa:

    $ pip install lupa