I’ve started to learn the basics of Android Apps development. As always that there is code involved, I like to use a code versioning tool. In my case I use subversion.
The general rule of thumb I use when using subversion is to add everything to subversion except the auto generated files. For Android this means, add everything generated by eclipse ADT plugin except the gen and bin folders.
I tell the steps to follow to create a new project and upload to a subversion repository. In this example I use a folder in my home directory to store the project files. Instead of letting Eclipse create the folder I do it myself and then I check out the option “Use default location”.
- Launch Eclipse and create a new Android Project, setting the location you want to use
- Check out your subversion trunk development at your selected location
svn co http://path/to/your/subversion/trunk ~/libtronicsExample
- Add everything to subversion
cd ~/libtronicsExample svn add * svn add .project svn add .classpath
- Revert bin and gen contents (but keep versioning the root folders, as you need them to build the project)
cd ~/libtronicsExample cd bin svn revert --depth infinity * cd ../gen svn revert --depth infinity *
- Check what are you versioning
cd ~/libtronicsExample svn status
- Submit it
cd ~/libtronicsExample svn ci -m "My first commit of my next awesome Android App"
At work, we made a python program to display plots of some data. This program is based in python, pyQt, PyQwt5, guiqwt and matplotlib. We are using python 2.7 for all of our developments. We use linux for development, but this application main users are Windows Users, so we had to generate a windows binary of this application. For all libraries there was a binary for windows 32 bits and python 2.7, except for PyQwt, so we had to compile it. Yes, compile!
In order to compile PyQwt-5.2.0 for python 2.7 with pyQt4 we need to install all dependencies. What I installed:
- Visual c++ 2010 express (we need nmake)
cd PyQwt-5.2.0 cd configure configqt.bat vcvars32.bat python configure.py -Q ../qwt-5.2 nmake nmake install
- After installing Visual C++ 2010, nmake was not found, I had to add “C:\Program Files\Microsoft Visual Studio 10.0\VC\bin\” to the path
- vcvars32.bat is a batch command to set the paths correctly for Visual c++ 2010, it is located at same place as nmake.
- when running “python configure.py -Q ../qwt-5.2″ an error message box appeared as it was unable to find mspdb100.dll, I searched it on my Program files and copied it to PyQwt-5.2.0/configure
As I’m learning python and Qt I change my mind on some of the tips I’ve already posted here. This is the case for my old tip on how to configure Eclipse to work with PyQt4. That old post should be called “How to compile ui files from eclipse”, so I will try to ammend my error in this new post.
At work we are developing software in python which depends on libraries not installed by default in a Linux installation. When the python interpreter can not found a module imported inside a python script an exception is raised. This breaks the current execution and outputs the execution trace on the terminal. To give more detailed information and not the trace which can be hard to read for non developers I check dependencies of my programs on launch.
Update: I’ve written an updated and extended version of how to setup Eclipse for PyQt development here.
Lately I’m working using pyQt as the GUI of my python scripts. I prefer eclipse + pydev over EricIde, but EricIde has some features not present on pydev. Basic feature I was missing was to launch pyuic from my IDE.