PyMaemo/Documentation for pyside-assistant
 Setting up
 Installing from Ubuntu PPA
If you are using Ubuntu then you can add PySide's ppa and get pyside-assistant from there:
sudo add-apt-repository ppa:pyside sudo apt-get update sudo apt-get install pyside-assistant
 Building and installing from source
To build and install pyside-assistant you will need a Debian-based Linux distribution. First, install python2.5, sharutils and python-stdeb packages, that are runtime dependencies of pyside-assistant. Get the source from the Github page, then in the directory which pyside-assistant was downloaded, run:
$ dpkg-buildpackage -D -rfakeroot -us -uc
NOTE: If you don't have python2.5 available in your repository, like Ubuntu Natty users, you can install it from this ppa.
$ sudo add-apt-repository ppa:fkrull/deadsnakes $ sudo apt-get update $ sudo apt-get install python2.5
Warning: Do not install python-stdeb from the git sources, or pyside-assistant will not work properly! The version from Debian and Ubuntu (0.6.0+20100620-1) works as expected.
Now go back a directory level and install the binary package:
$ sudo dpkg -i pyside-assistant_<version>_all.deb
 Usage Instructions
The main script for using pyside-assistant is
 init command
The init command creates a project from the templates. It receives as mandatory arguments a string that identifies the entire project, called project slug and the target platform (e.g. fremantle). The following call will create a project in the current directory with the project slug sampleproject:
$ psa init sampleproject fremantle
All project files will be contained in a directory named after the project slug, which in this case is sampleproject. Additional parameters can be passed to
psa init to set various fields from the start; these parameters are shown below:
-a APPNAME, --app-name=APPNAME Human-readable application name, refers to the Name field of sampleproject.desktop -s SECTION, --section=SECTION Application section, refers to the section field of stdeb.cfg -d DESC, --description=DESC Application short description, refers to the description field of setup.py -c CATEGORY, --category=CATEGORY Application category, refers to the appname field of sampleproject.desktop
The created projects come with a file called README.assistant, which lists what each file does. The contents of this file is listed below:
========================================= README - pyside-assistant generated files ========================================= All files generated by psa init are described below. The sampleproject slug used for them was 'sampleproject', with the following psa call: $ psa init sampleproject fremantle * MANIFEST.in: Distutils considers a list of files by default for installation, listed at . Additional files to be distributed must be supplied in the MANIFEST.in file. The generated file includes the .desktop file and any QML files found.  http://docs.python.org/distutils/sourcedist.html#specifying-the-files-to-distribute. * setup.py: The main file for using Distutils, contains most of the information needed to build the package. Information about setup.py can be found at http://docs.python.org/distutils/introduction.html. Two fields of this file can be modified by psa update parameters: - description: -d or --description - long_description: the contents of sampleproject.longdesc are used * stdeb.cfg: Configuration file for stdeb, specifying additional parameters for the binary package. The specification for this file can be found at https://github.com/astraw/stdeb, in the section stdeb.cfg configuration file. One field of this file can be modified by psa update parameters: - Section: -s or --section Note that the section should be a valid one, as specified in http://wiki.maemo.org/Task:Package_categories#New_list_for_Diablo. * sampleproject.desktop: This file specifies how to run the application from the application grid, with various fields. Information about .desktop files can be found at http://wiki.maemo.org/Desktop_file_format. Two fields of this file can be modified by psa update parameters: - Name: -a or --app-name - Category: -c or --category Note that the category should be a valid one, as specified in http://standards.freedesktop.org/menu-spec/latest/apa.html. * sampleproject.png: The application icon, which is displayed in the application grid. * sampleproject.qml: The QML file for the application. By default just displays the words "Hello QML!" in the center of the window. * sampleproject: Main program. Initializes the application and provide support for displaying the QML file contents. * sampleproject.longdesc: Holds the contents of the long_description field of setup.py, which as the name implies is a more detailed description of what the project is.
 build-deb command
The build-deb command does all necessary steps for generating a binary package. It essentially calls stdeb to build the proper Debian package and then places the application icons inside it. For using this command, you just have to enter the project directory and run:
$ psa build-deb
The binary package will be found under the ./deb_dist directory.
 update command
The update command can change certain values inside the project files, minimizing the need to open and edit them directly. This command accepts the following parameters:
-a APPNAME, --app-name=APPNAME Human-readable application name, resides in sampleproject.desktop -s SECTION, --section=SECTION Application section, resides in stdeb.cfg -d DESC, --description=DESC Application short description, resides in setup.py -c CATEGORY, --category=CATEGORY Application category, resides in sampleproject.desktop
These parameters can be used in any order. As an example, to change the description and section of the project, run:
$ psa update -d "Sample project" -s games
 Example workflow
$ psa init sampleproject fremantle $ cd sampleproject (... hack ...) $ psa build-deb (... copy binary package to destination and install it ...) (... hack some more ...) $ psa update -c AudioVideo -s graphics $ psa build-deb (and so on.)
 Packaging generic Python applications
pyside-assistant was initially conceived for creating PySide applications, but in fact it can be used to build binary packages for any pure Python application that uses Python Distutils.
For that purpose, follow these steps:
psa initas usual, to create the initial project layout;
- Erase the qml directory, as its files are specific to Qt programs;
- Create or add all files of your Python application;
- Edit stdeb.cfg and replace the contents of the Depends field with the correct runtime dependencies for your application, if any.
- If you don't have a setup.py file for your project, edit the provided one removing the .qml file reference and adding any other project files you need. See the Python Distutils documentation to know how the setup.py file works and how to edit it.
From now on, the same workflow applies: modify files, build binary package with
psa build-deb, update fields with
psa update, and so on.
- This page was last modified on 4 July 2011, at 20:49.
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