Tag Archives: python

Running Python on Axis devices

Axis’ platform for running applications on the camera itself is really great. For you who haven’t seen ACAP share I really suggest you click yourself over there to see what it’s all about.

As mentioned in other posts, Axis have created an embedded platform where you can install applications on the different devices to add features to the edge. This can be analytics that is looking for something unique like a people counter or advanced cross line-type detection. It can also be for simpler tasks like sending a message using a service platform similar to the pushbullet integration that I published here some time ago.

The only downside is that to develop these applications you have to know C which can be tough for the average script kiddie who just wants to perform something small. So, in order to solve some of the more simple scripting that you can be interested in doing. On ACAP Share there’s a PHP application that allows someone to write a PHP script that can be executed on a camera. This is a great application if you’re looking to use smaller APIs for your task.

PHP is extremely popular and allows you to do a number of great things. Python is another extremely popular language. Soo.. Enough said, below is the compiled ACAP and how to build it if you have the environment.

Build script:

buildpython

The python binary itself:

Python_2.7.1_1_0_mipsisa32r2el

Recommended FW: 5.80+. The reason is that the package is pretty big and will need some space. We’ve seen problems with 5.60 and 5.70 firmware that doesn’t allow the package to go through due to it’s size. After 5.80 it seems fine though. (Yes, python is a big library)

It’s build to run on the MIPS architecture, meaning it will work on ARTPEC-4 and ARTPEC-5 devices but that’s it. Python version is 2.7.1 with some limitation built to it (see buildpython.sh)

When you upload the binary there’s an attached python script in that folder. Edit that and make sure you run a continuous loop on it to perform whatever you want to achieve.

ACAP is actually so powerful that you can create your own applications that are essentially script that runs off another application. To start a python script from the command line, use:

LD_LIBRARY_PATH=/usr/local/packages/python_2_7_1/lib /usr/local/packages/python_2_7_1/bin/python /path/to/script.py

This can be called from system(); as well in your C application.

Hopefully this can save some time for people who’re interested in developing in python on Axis devices.

/Marcus

Adding bit.ly support to mu-feeder

My twitterfeed haven’t been working for  a while now. The last update was 2009-11-25, so I went out googling on “twitterfeed replacement” and found mu-feeder. A small python script that publish your blog entrys (or whatever RSS feed that you might have) to twitter. It’s very sweet but i missed the bit.ly support.

But, since it’s open source, there’s nothing that you can’t do about it :). I went out hunting and i found python-bitly. A library for the bit.ly API!

After some tweaking in the bitly file I got it working.

Step 1: Download mu-feeder and unpack it.
Step 2: Download the modified bitly file and put it in mu-feeder/shorteners (diff here)
Step 3:  Edit your mu-feeder settings.py. set URL_SHORTENING_SERVICE to “bitly” and URL_SHORTENER_LOGIN plus URL_SHORTENER_PASSWORD to your bit.ly username and the API key that you have on bit.ly.

That’s it. Now it should work just fine :).

Have a nice weekend.
Marcus

Getting Drupal Modules using Python

A good friend of mine wrote yesterday a small python script that allows the user to search and download Drupal modules directly via the official ftp.
This was made since it is quite boring/irritating to first browse through the module page on drupal.org and then copy the link to a shell where you download the module you want on your web server.

Instead, Jonas (that’s my friends name, btw) wrote this program that directly scans through the drupal module directory on the ftp and returns the output in a shell where the user just enter the choice that he/she wants. Example:

jonas@thinkpad61:~$ ./idm.py hello
Found 32436 files!
[0] hellomobile-5.x-1.0.tar.gz
[1] hellomobile-5.x-1.1.tar.gz
[2] hellomobile-5.x-1.x-dev.tar.gz
[3] hellotxt-6.x-1.x-dev.tar.gz
Which module do you want to download? 1
Ok, lets get hellomobile-5.x-1.1.tar.gz
jonas@thinkpad61:~$ ls -l hellomobile-5.x-1.1.tar.gz
-rw-r--r-- 1 jonas jonas 824473 2009-10-22 22:34 hellomobile-5.x-1.1.tar.gz

I believe that this is quite usefull and interesting. But, as Jonas mentions in this post. It does not contain the functions that you might need, such as: version filter and dev filter. Meaning that you don’t want to see results for drupal 5 if you are running six. Nor do you want to use developer packages when you are in a critical installation.

I had some time so I made some improvements on the original:

tomburk@linux-e9bm:~> python idm-mf.py --help
Usage: idm-mf.py [options]

Options:
-h, --help            show this help message and exit
-f version, --filter=version
Filter the results in version numbers.
-d, --dev             Show developer packages

This allows the user to filter between the version, of course “all” can be applied, if one wants to show all the results. Plus, It’s possible to toggle between showing the developer packages or not.

Final result:

tomburk@linux-e9bm:~> python idm-mf.py -f 5 hello
Found a total of 32451 files!
Files containing "hello"
 Based on filter: 5
  Not showing developer packages
[0] hellomobile-5.x-1.0.tar.gz
[1] hellomobile-5.x-1.1.tar.gz
Which module do you want to download? 1
Ok, lets get hellomobile-5.x-1.1.tar.gz
tomburk@linux-e9bm:~> ls -s hellomobile-5.x-1.1.tar.gz
812 hellomobile-5.x-1.1.tar.gz

The file is available here: http://marcusfollrud.net/wp-content/idm-mf.py
Or at github: http://github.com/marcusfollrud/idm
See you!

A small update

2009-10-24 – Added support for multiple file download, Available on both github and in wp-content

Publish to WordPress plasmoid v0.02

Igårkväll satt jag och skissade lite på hur framtida versioner av wordpress-plasmoiden skulle kunna se ut.

Jag använde mig utav QT Designer för att göra själva moc-upen och det blev såhär:

Wordpress Plasmoid

Wordpress Plasmoid

Plasmoiden blir lite större, men känns mer komplett, med möjligheterna att:

  • Lägga till taggar
  • Markera flera kategorier
  • Editera i redan skapade bloggposter
  • Förhandsvisa material

Jag tror det kan bli riktigt bra!
Funderar även på hur mycket jobb det skulle vara att lägga in bilder med drag-n-dropfunktionalitet. WordPress libbet som är integrerat stöder det, men det är nog lite jobb att ställa in storlek med en extra dialogruta. Vi får helt enkelt se.

Publish to WordPress Plasmoid

Vill du blogga på din wordpressblogg utan att aktivt gå in via din webbläsare?

Isåfall har jag en lösning att erbjuda dig 🙂

Publish to WordPress Plasmoid är en plasmoid till KDE4 som enkelt låter dig skriva ett blogginlägg utan att gå in direkt på själva bloggsidan.

Den är väldigt enkelt skriven och är baserad på pyKDE och wordpresslib.

Just nu erbjuder den inget annat än det mest simpla. Att skapa ett inlägg med enbart en titel och text.

Funktioner som skulle kunna integreras är taggar,kategorier och inmatning av bilder. Men, det har jag inte gjort i denna release.

Vill du testa den?
Ladda ner här

Kolla källkoden på github (GPL licensierad):
http://github.com/marcusfollrud/Publish-to-Wordpress-plasmoid/tree/master

Kontaka mig gärna ifall du skulle vilja hjälpa till med något!
mail: marcus.follrud<canelbull>gmail.com