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| − | =Why Python?= | + | ==Why Python?== |
| | * because writing in C sucks | | * because writing in C sucks |
| | * your time is valuable | | * your time is valuable |
| | * once a python zealot, always a python zealot. | | * once a python zealot, always a python zealot. |
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| | + | ==Compiling python from source== |
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| − | =Compiling python from source=
| + | # Construct the [[Scratchbox]] environment. |
| | + | # Download the source to the python flavor of your choice |
| | + | # {{Command|./configure; make; make install}} |
| | | | |
| − | Supposedly there are patches that will allow you cross compile python. Unfortunately I wasn't able to get it to work. The problem is that the Python build system uses the binary it generates to finish the build process - meaning that in a cross compiling situation you have to build an arm binary *and* a localhost binary (i686-linux-gnu or whatever).<br/>
| + | ==If you're too lazy to do all that...== |
| − | <br/>
| + | You can download all of this prebuilt in [http://files.chumby.com/languages/python/python2.6-chumby.tgz python2.6-chumby.tgz] (13MB). |
| − | A good starting point is http://www.mail-archive.com/patches@python.org/msg03662.html.
| + | |
| − | | + | |
| − | =Using an existing python binary= | + | |
| − | | + | |
| − | <p>
| + | |
| − | Luckily a number of existing linux platforms already support builds for the arm-linux. It is fairly painless to grab a binary from one of these systems and make it work on the chumby. I used the binary from [http://pymaemo.sourceforge.net/cgi-bin/moin.cgi python for maemo] project. The [http://maemo.org/ Maemo] project is the open source effort by Nokia to get linux and associated tools work on their arm based 770 platform.
| + | |
| − | </p>
| + | |
| − | * Download the python maemo binary from [http://pymaemo.sourceforge.net/cgi-bin/moin.cgi/ here]. You are looking for the PyMaemo 1.1 runtime.
| + | |
| − | * The download is in a DEB file. There is probably some official way to untar a DEB file. However, the easiest solution is to run "tar x filename.deb". That will dump out the contents of the file.
| + | |
| − | * You should see something like data.tar.gz. untar this file in the location of your choosing. For the purposes of this recipe I will assume you used the folder "chumby-python"
| + | |
| − | * The next step is to make this folder available to the Chumby. There are two options: 1) copy the contents to a thumb drive or 2) simply mount this folder via NFS.
| + | |
| − | * NFS:
| + | |
| − | ** [[chumby_tricks | Enable SSH with a USB thumb drive]]. Your other option is to use find the easter egg that turns on the SSH server. A source of inspiration might be the Davinci Code.
| + | |
| − | ** Login to your chumby via SSH.
| + | |
| − | ** Mount your "chumby-python" folder via NFS - this assumes that you have exposed "chumby-python" using your nfs exports file. Assuming that your server name is chumbyfanboi and your "chumby-python" is located at /opt/chumby/chumby-python, execute the following command:
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| − | ** "mount -o nolock -t nfs chumbyfanboi:/opt/chumby/chumby-python /python". "-o nolock" is important because portmap isn't running on the chumby.
| + | |
| − | ** cd to /python/usr/bin.
| + | |
| − | ** exec ./python2.4
| + | |
| − | ** you should now be running python! Note that the Maemo distribution only includes the basic python packages.
| + | |
| − | * Mount via USB (I haven't done this so please add your instructions here)
| + | |
| − | =If you're too lazy to do all that...= | + | |
| − | You can download all of this prebuilt in [http://files.chumby.com/languages/python/chumbypython.tgz chumbypython.tgz]. | + | |
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| | Just unpack onto a USB drive, add your python code and a "debugchumby" script, and you can write your own python applications for your chumby! | | Just unpack onto a USB drive, add your python code and a "debugchumby" script, and you can write your own python applications for your chumby! |
Just unpack onto a USB drive, add your python code and a "debugchumby" script, and you can write your own python applications for your chumby!
