Michal Čihař - Blog Archives for Wammu

Packaging python-gammu

After Monday release of separate Gammu and python-gammu, the obvious task was to get the new package to distributions.

First I've started with Debian packages, what was quite easy as from quite complex CMake + Python package it is now purely CMake and it was mostly about removing stuff. Soon the updated Gammu package was uploaded to experimental. Once having that ready, I've also update the backports for Ubuntu and these are available in Gammu PPA. Creating new python-gammu package was a bit harder as this is the first Python 3 compatible package I've created, but it's now ready and sitting in the NEW queue.

While working on python-gammu package, I've realized that some of the data used in testsuite are missing in the tarball. While not being critical, this is definitely not nice, so I've decided to release python-gammu 2.1 today. It also includes fixes for some corner cases found by coverity.

For openSUSE the packaging was quite easy as well, stripping out unneeded parts of Gammu package went smoothly and it's now in hardware project, SR to Factory is pending. With python-gammu it turned out to be much harder as the testsuite had failed there with some strange error coming out of libdbi. After looking deeper into it, the problem is in new return type available in Git snapshot openSUSE is shipping. Fortunately producing fix was quite easy, so next Gammu upstream will handle that properly and package in hardware project is already patched. You can now use python-python-gammu from devel:languages:python and SR to Factory is pending as well.

Hacking Gammu

I've spent first day of SUSE Hackweek on Gammu. There are quite many tasks to be done and I wanted to complete at least some of them.

First I started with the website. I did not really like the old layout and aggressive colors and while touching it's code it's good idea to make the website work well in mobile devices. I've started with conversion to Bootstrap and It turned out to be quite easy task. The next step was making the pages simpler as in many places there was too much information hidden in sidebar. While doing content cleanup, I've removed some features which really don't make much sense these days (such as mirror selection). Anyway read more in the news entry on the site itself.

Second big task was to add support for Python 3 in python-gammu. It seems that world is finally slowly moving towards Python 3 and people started to request python-gammu to be available there as well. The porting itself took quite some time, but I've mostly completed it before Hackweek. Yesterday, there was just some time spent on polishing and releasing standalone python-gammu and Gammu without python bindings. Now you can build python-gammu using distutils or install it using pip install python-gammu.

Porting python-gammu to Python 3

Over the time I started to get more and more requests to have python-gammu working with Python 3. Of course this request makes sense, but I somehow failed to find time for that.

Also for quite some time python-gammu has been distributed together with Gammu sources. This was another struggle to overcome when supporting Python 3 as in many cases users will want to build the module for both Python 2 and 3 (at least most distributions will want to do so) and with current CMake based build system this did not seem to be easy to achieve.

So I've decided it's time to split python module out of the library. The reasons for having that together are no longer valid (libGammu has quite stable API these days) and having standard module which can be installed by pip is a nice thing.

Once the code has been put into separate git module, I've slowly progressed on porting to Python 3. Most of the problems were on the C side of the code, where Python really does not make it easy to support both Python 2 and 3. So the code ended up with many #ifdefs, but I see no other way. While doing these changes, many points in the API were fixed to accept unicode stings in Python 2 as well.

Anyway, today we have first successful build of python-gammu working on both Python 2 and 3. I'm afraid there is still some bug leading to occasional segfaults on Travis, but not reproducible locally. But hopefully this will be fixed in upcoming weeks and we can release separate python-gammu module again.

Gammu 1.35.0

Gammu 1.35.0 has been just released. This is just bugfix release to fix some major issues introduced in 1.34.0.

Full list of changes:

  • Fixed encoding of UTF-8 for higher code points.
  • Improved provided udev rules.
  • Fixed possible lock while getting network status in SMSD.
  • Various localization updates.

You can download it from http://wammu.eu/download/.

I will not make any promises for future releases (if there will be any) as the tool is not really in active development.

No Windows builds for Gammu and Wammu

For quite some time I used to produce Windows builds for both Wammu and Gammu using cross compiling on Linux. But this has proven to produce some errors and needed my time to maintain the cross compilation environment. I've decided to stop producing Windows binaries and I don't expect to get back to that anytime soon.

This is actually no news for Wammu, where I've removed Windows builds some about two years ago as they proven to be too broken for normal usage, but for Gammu it's new as previous release had Windows builds. I've lost the cross compilation environment due to hard drive failure and restoring it is simply too much of work and still will not allow me to build complete release (I've not managed to build Python modules properly).

So if anybody is interested in Windows binaries, he needs to produce them on Windows. I can help with fixing code or existing setup scripts (they probably need adjustments as they were tweaked for cross compiling), but somebody has to setup the environment with all dependencies and test the build on Windows.

Gammu 1.34.0

Gammu 1.34.0 has been just released. It has been more than year from last Gammu release and it's time to release all new features and bugfixes.

Full list of changes:

  • Add phone power ON/OFF function.
  • Removed deprecated Python modules gammu.Data and gammu.Worker.
  • Store network name and code in SMSD tables.
  • Fixed build with recent clang compiler.
  • Fixed several possible issues found by Coverity scan.
  • Fixed possible crash on SMSD startup.
  • Fixed decoding unicode SMS messages.
  • Added identification for several Nokia phones.
  • Fixed compilation issues on various platforms.
  • SMSD now honors loglevel for all logging targets.
  • SMSD can automatically hangup incoming calls.
  • Correctly detect Network errors.

You can download it from http://wammu.eu/download/.

I will not make any promises for future releases (if there will be any) as the tool is not really in active development.

Wammu 0.38

It seems that the 0.37 release was not that good as I hoped for, so here comes another bugfix release. So here comes Wammu 0.38.

The list of changes is not really huge:

  • Compatibility with latest wxPython releases.
  • Fixed corrupted appdata metadata.
  • Fixed broken desktop file due to Chinese translation.
  • Translation updates.

I will not make any promises for future releases (if there will be any) as the tool is not really in active development.

Wammu 0.37

It has been more than three years since last release of Wammu and I've decided it's time to push changes made in the Git repos to the users. So here comes Wammu 0.37.

The list of changes is not really huge, but in total that means 1470 commits in git (most of that are translations):

  • Translation updates (Indonesian, Spanish, ...).
  • Add export of contact to XML.
  • Add Get all menu option.
  • Added appdata metadata.

I will not make any promises for future releases (if there will be any) as the tool is not really in active development.

Call for Wammu translations

I'm about to release new Wammu version in one or two weeks, so it's best time to look at the translations and improve them. There is not much new messages since last release, but only few translations were complete back then, so virtually any language (Czech and German are the only ones complete right now) needs improvements.

To translate you can simply use web interface:


If you want more information about translating, please visit our website:


Documentation translation

Some weeks ago, I've started to change documentation structure of Gammu to move from separate documents here and there into one comprehensive documentation which would cover it all. As a tool to do this I've chosen Sphinx, simply because I felt most convenient with the format and outputs it provides.

So far the SMSD documentation has been converted from various places and formats, but it also opened up a question - how to deal with translations? So far we used po4a to translate man pages, however using it for generated man pages is slightly complicated (there are some macros which po4a does not understand and it seems to break encoding on the way).

Translating whole new documentation is something what is unlikely to be finished, especially considering fact, that the only real existing translation so far is Czech which was done by me.

For now I decided to keep old translated man pages and postpone the decision, but considering current situation, I will most likely just drop the translations for man pages unless I find some good solution how to translate Sphinx documents (po4a should be able to do that, but it will probably need some tuning).