Difference between revisions of "Python development"
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* Launch Buildroot's menuconfig: | * Launch Buildroot's menuconfig: | ||
| + | <source lang="bash"> | ||
armadeus$ make menuconfig | armadeus$ make menuconfig | ||
| + | </source> | ||
* In | * In | ||
| − | [[Image:Menuconfig_package.png]] <br> choose <br> [[Image:Menuconfig_package_python.png]] <br> | + | [[Image:Menuconfig_package.png]] <br> |
| + | and in | ||
| + | [[Image:Menuconfig_package_scripting.png]] <br> | ||
| + | choose <br> | ||
| + | [[Image:Menuconfig_package_python.png]] <br> | ||
* then save your configuration and build your system: | * then save your configuration and build your system: | ||
| + | <source lang="bash"> | ||
armadeus$ make | armadeus$ make | ||
| + | </source> | ||
* copy generated rootfs to your NFS directory or on your MMC/SD. If you already have an existing rootfs then just make a: | * copy generated rootfs to your NFS directory or on your MMC/SD. If you already have an existing rootfs then just make a: | ||
armadeus$ tar xf buildroot/binaries/armadeus/rootfs.tar -C /local/export/ | armadeus$ tar xf buildroot/binaries/armadeus/rootfs.tar -C /local/export/ | ||
Revision as of 11:26, 5 November 2008
On this page you will learn how to create your first Python script for your Armadeus board. 
Installation
Python interpreter and libraries are not installed in the default APF9328 rootfs. Currently it increases the rootfs size by 6 MBytes and so, without cleanup, it won't fit in the old APF9328 FLASH size (8 MBytes).
So for the moment, if you have an 8MB FLASH, you can only use it from a NFS or a MMC/SD rootfs.
Python version installed by Buildroot is 2.4.
If your are a Python expert you can still delete some files in $ROOTFS/usr/lib/python2.4/... and tell us what isn't mandatory and uses a lot of space for nothing.
- Launch Buildroot's menuconfig:
armadeus$ make menuconfig
- In
and in
choose
- then save your configuration and build your system:
armadeus$ make
- copy generated rootfs to your NFS directory or on your MMC/SD. If you already have an existing rootfs then just make a:
armadeus$ tar xf buildroot/binaries/armadeus/rootfs.tar -C /local/export/
Here /local/export/ is my NFS exported directory.
Source code
- First take your favorite editor/IDE and create the following script:
import sys
print "APF9328 says: Hello World ! ;-)"
sys.exit(0)
- Save it as hello.py
Compilation
Not needed. Transforming python script in executables hasn't been tested yet.
Running
- Copy your hello.py script on your NFS export directory or on your MMC/SD
- then on your APF console, launch it:
# python hello.py APF9328 says: Hello World ! ;-) #
Now it's up to you ! ;-) But keep in mind that Python is extremly powerfull and libraries rich, so if you don't pay attention to memory usage of your scripts, you can easily reach the APF9328 memory size limit: 16 MBytes.
