Thursday, December 13, 2012
Recently, I’m working on python-host program. Under the hood, that program hosts python binary, and the django development server works as HTTP API server on python environment. Although it’s not optimized, but useful enough for my purpose.
There’s other projects about this (like as DjangoOnAStick and Portable Python), however, they don’t provide for OS X version and < Python 2.7 versions. So I made up my mind to create something new. (this is based on python 2.7 and django 1.4)
Okay, refer to this URL : https://bitbucket.org/kenial/portable-django
There is shell script(also known batch file on Windows) ready. Use it like this:
Friday, November 2, 2012
A friend of me wrote on SNS that she bought a desktop app managing personal book list. As I saw it then thought that ‘Oh I need this one too’ and was considering to buy one in a minute. But, well, I decided to implement it on my own. Features are simple. Input ISBN, book title, or author’s name, and then just run the script. So that the script will find information of the books from Google Books API, and paste them on a sheet. If you need additional fields, just add them as well as need.
How to use: input a part of book information like this and run the script (click 'Get book information from Google Books API' menu), the sheet will be filled out with information of the books.
I was just trying to enhance my Google Apps Script skill, but if you need this, use freely : )
Friday, September 7, 2012
In order to write an cocoa application that can start/stop webserver embedded within, I needed some method could run terminal commands. One user(thanks kent!) suggested to use /bin/sh to run shell script file – and you might know, /bin/sh utility can run a line of command instead of script file with –c option. With NSTask and /bin/sh, I made some method to run a shell command by line:
Using above method, you can write a code to run a line of terminal shell command like this:
Friday, August 24, 2012
- Google Play apps : https://play.google.com/store/apps/developer?id=Kenial
- WP Marketplace apps : http://www.windowsphone.com/en-US/publishers/Kenial
Monday, August 20, 2012
|GAE||GAE(HTTP)||Site A*||Site B**|
|*** KT wibro||130~190||320~||88~||95~|
|*** KT 3G||300~||380~|
Sunday, August 5, 2012
I’m writing this post because of this interesting article:
(I’m sorry that it’s written in Korean)
[기고]약정 벗은 안드로이드, 서버가 되다…'서품폰'
This article, which explains how to make a old android phone into simple server with web2py and ubuntu blahblah, concluded that the post’s author couldn’t set up Django on Android. I can’t understand why – you know, Django doesn’t depend on a bunch of ‘native’ python packages as I know(in other words, Django consists of pure python source files). If python is configured correctly, Django goes well as well, I guess.
Yes, my Django doesn’t go such a fastidious way.
… So spent half a day, finally I got working Django 1.4 on Android – the working feature is mere runserver thing yet. Whatsoever, with more efforts, I believe that it’s going to be able to set up Django with other web server program. Will mod_wsgi be excutable on Android? hmm…
However, here’s my work:
※ Note: Target device is Motorola MOTOGLAM, rooted and Android Froyo (2.2) installed.
※ Note: The Android is unlike a typical Linux environment, the packages that can be installed in are limited. Django on Android has such limitation as well. It’s hard to install the packages for Django(e.g. south, celery …), even sometimes impossible it is. So, just for fun, okay?
Django 1.4 for Android
(only dev. runserver!)
First, you have to install few apps.
Some can be installed through Google Play, and others sholud be installed manually by using apk package. Heck, you don’t know about apk? DON’T DO THIS. Headache might overwhelm you.
The following apps being on Google Play:
- File Manager
This is for installing apk or in case deleting some file manually. I’m using ES File Explorer as file manager.
- Terminal Emulator Virtual terminal for Android. If you don’t wanna root your phone, I guess there are some ways to do this, can you type all of tedious strings with Android’s virtual keyboard? Forget it. Use SSH, for your precious soul.
A sort of ssh deamon for Android. It makes basic unix workspace for you with some utilities which don’t exist on Android.
Launching SSHDroid, you can check the device’s IP address. And password for connection is configurable on SSHDroid’s menu. (You might change this)
The following apps are what you should install using apk manually:
- Rooting tool
This work might be done without rooting, but I have no idea on this. I guess it’s real hell without rooting, just do this. You can find vary tools for your Android – and it depends on what device is and what Android OS version is. So I omitted rooting things here.
If your device is rooted, run SSHDroid on your device,
confirm that you could connect to your device through ssh. If you’re mac user, you could use default terminal program. In case of windows user, you could use ssh client program such a putty. According to above image, 10.0.0.14 is IP address of Android device. If ssh connected, you see messages like these:
Kenials-MBA:~ kenial$ ssh firstname.lastname@example.org
The authenticity of host '10.0.0.14 (10.0.0.14)' can't be established.
RSA key fingerprint is f7:97:44:c3:ab:49:42:14:db:ec:f2:e2:b8:ae:62:74.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.14' (RSA) to the list of known hosts.
Use 'root' on rooted devices otherwise any username works
Default password is 'admin'
You guess what, from these names? These guys make your Android device to execute Python script on it, easily. Django is a web framework written in python, so python environment to run is needed.
Connecting to your device through ssh, install them(I downloaded thme at /mnt/sdcard/_apk)
pm install sl4a_r6.apk
pm install PythonForAndroid_r6.apk
Then, check your apps installed, SL4A and Python for Android.
Runs Python for Android app, then tap Install button to install modules:
If the installation done, run SL4A app and execute helloworld.py script to check python works correctly.
- Edit .profile
This .profile script is for configuration of python environment. In terminal(or ssh client), type following commands to edit .profile:
The content of .profile file:
# create /usr path for django-admin.py
if [ ! -d /usr/bin ];
mount -o remount,rw /
ln /data/data/berserker.android.apps.sshdroid/home/bin /usr/bin –s
Save the file and quit. Then type (or just reconnect to device):
Link python to sshdroid’s default path:
ln /data/data/com.googlecode.pythonforandroid/files/python/bin/python /data/data/berserker.android.apps.sshdroid/home/bin/python
ln /data/data/com.googlecode.pythonforandroid/files/python/bin/python /data/data/berserker.android.apps.sshdroid/home/bin/python2.6
Try to run python interpreter. If works, you see the result:
- Django installation
Now (finally!!), it’s time to install Django.
Go /mnt/sdcard/_apk path, download Django 1.4 package file, unzip it, copy the ‘django’ folder to python’s library folder. (Time to unzip could take a long time, just copy unzipped folder from PC directly into sdcard, if you want)
tar xzvf Django-1.4.tar.gz
cp -r django /data/data/com.googlecode.pythonforandroid/files/python/lib/python2.6/lib-dynload/django # instead of 'python setup.py install'
ln /data/data/com.googlecode.pythonforandroid/files/python/lib/python2.6/lib-dynload/django/bin/django-admin.py /data/data/berserker.android.apps.sshdroid/home/bin/django-admin.py
Here is one what you remember: In most cases, you can’t install python package using general setup.py script on Android. Android OS doesn’t have various developer’s tools, for example, like gcc, so you need to copy django folder into lib-dynload folder by hand. Then python could load Django modules from lib-dynload folder, using by p4a.
* You can also let this Django folder go to site-packages folder, which is more general for pythonic package. But site-packages of P4A is on sdcard path, might cause slow performance(it depends on what your device is). So I copied it to lib-dynload folder under /data path.
ln command will link django-admin.py to SSHDroid’s PATH enviroment variable, and you can django-admin.py on anywhere path.
- Create django project
Wanna take a bite? Go ahead:
django-admin.py startproject django_first
python manage.py runserver 0.0.0.0:8000
Check it out running:
And bring it on:
Done! : )