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Yesterday, Python 3.4 was finally released, so I'm now happy to announce the first stable release of kdevelop-python which supports Python 3! See below for the tarballs.

As in the Python 2 series, PyQt continues to be one of the best supported frameworks.

There's not that much more to say than what was already said in the beta announcement, so I will just post some screenshots of what continues to work in the Python 3 version:

Code completion is powerful as ever and tries very hard to only make suggestions which are useful in the current context.

Code tooltips are still there, too.

As always, please report any bugs you might find to the bug tracker. Happy hacking!

Good news: Python 3.4 is about to be released, and with it kdevelop-python's first version to support Python 3. Until that happens in a few days, here's a beta:
There are a few things which need to be announced about this, so read on!

Embedded Python fork

First and foremost, this abomination is finally gone in the -py3 series. Python 3.4 merged a patch which is required by kdev-python, and now we can use the system's python installation. This will especially make kdev-python comply with all distribution's requirements for packaging software, which means it will hopefully soon be available in all major distribution's package repositories.
This also means that kdev-python now depends on Python =3.4.

Python 2 compatibility

The py3 series is not compatible with Python 2, and currently you can not install kdev-python and kdev-python3 side-by-side. I will try to address this restriction in the future and I will also publish a script to install the two versions into separate environments, but for now that's what is like. Especially, for packagers, this means that kdev-python must conflict with kdev-python3. The problem cannot be solved by renaming all the files, it also requires new UI and glue code to be written to select the correct language version, which I only have done partially as of today.

Branch names in kdev-python.git

I also used this opportunity to reorganize the branches in kdev-python.git a bit:

• python3 is now python3-legacy (do not use)
• python3-nofork is now python3; this branch is the most recent (unstable) version of the python3 version of the plugin, and compiles against kdevplatform master
• there's a 1.6-py3 branch which is like 1.6 but for python 3.

If you had any of the renamed branches checked out, you might need to do git reset --hard origin/branchname. In the near future, master will also be renamed to python2 and python3 will be renamed to master (but not yet).

Feature comparison of kdev-python3 and kdev-python2

Generally, the Python 3 version has all the features from Python 2 plus a few more and some bug fixes. Not all new Python 3 features are understood yet (the syntax is supported, but the semantics isn't, e.g. nonlocal does nothing), though. What is there however is support for function annotations:

If the expressions in a function annotation represent a type (i.e. not an instance or something different) they are used to adjust the function's return and argument types.

I really hope this feature gets used for type hints, so this is a first step to encourage you to use it for that. ;)
Not all is awesome just yet, though: Although I'm not aware of any major issues, there will be regressions (things which were working in Python 2 but are now broken). There are always regressions, even with the ~90% test coverage kdev-python has. That's the purpose of this beta: go forth and test, and report all the bugs to the tracker so they can be slain!

I'm happy to announce the availability of a second stabilization update for the 1.5 series of kdev-python, the Python language support plugin for the KDevelop development environment. See the 1.5 announcement for more information.

kdev-python running in KDevelop master

Changes in this release (relative to 1.5.1):

• Fix a bug which led to the PEP8 checker running on non-python files in some cases
• Properly support unicode docstrings (thanks to Alexandr Zamaraev)
• Fix a crash in code completion which happened in some rare cases
• Fix a crash which could happen when a list comprehension was used as the default value for a function parameter

This is a small update containing only the above 4 bug fixes; all users are urged to switch to the new version as soon as it becomes available in their distribution.

There will be a larger update containing various cool new features in a few weeks, so stay tuned!

Hi!

Five months have passed since the release of kdev-python 1.4.1, and it's about time for the next release! The 1.5 release will contain various new features and bug fixes, and also will work with KDevelop 4.5, which is to be released soon.

One of the new features in kdev-python 1.5: initializing properties in class constructors via code completion

Notable Bugs fixed

The following issues were fixed, among others:

• 312275 don't add brackets if importing functions
• 318802 fix quadruple-quotes from causing completion to malfunction
• 317998 issue with function definition ranges causing completion to malfunction
• 317808 correct inheritance completion with member access
• 309817 correctly build uses for declarations in some corner cases
• 309469 include documentation files for PyKDE and the rest of PyQt
• 308986 fix a rare crash with some function definitions
• 1d34b03 fix an infinite loop in the debugger plugin
• 031badc don't reparse files on session restart if not necessary

The numbers are the bug / commit IDs of the change.

Notable new Features

The following new features are worth mentioning:

• 333cf91 sort completion items based on name similarity
• 6dc24ad class attribute initialization completion
• cd03cee PEP8 error checking. Enable it in "configure kdevelop" if you want to use it.
• b3ba512 support adding watches in the debugger plugin

Name-aware variable sorting: Although "the_bar" comes first alphabetically, "the_foo" is sorted first because its name matches the left side of the expression. You can still get an alphabetical list by invoking full completion.

Features that didn't make it into 1.5 yet

Two things that I wanted in 1.5 but which are not there are Python 3 support, and GHNS support. The latter is just not ready yet (might be in 1.5.1 or 1.5.2, but probably 1.6), the former can only be released in Q1 2014, as explained here.

Get it

kdev-python 1.5 is to be used with kdevplatform 1.5, and only 1.5 (so, kdevplatform with version numbers >= 1.4.60 and < 1.5.40). It's not going to work with kdevplatform master, or kdevplatform 1.4.
Please test this RC thoroughly and report any issues you find to the bugtracker, so the final 1.5 release can be as nice as possible! Get the tarball from download.kde.org. The sha256sum of the tarball is
441f675baddbfb9832a49458cc3c9a17daac4db55e7312c7a85d184bc0f4c776
Have fun with it! (not with the checksum, with the program I meant... you know)