/var/lib/python-support/python2.6/sqlalchemy/ext/activemapper.py:262: SyntaxWarning: assertion is always true, perhaps remove parentheses?

[Paul Larson]

Got this error when trying to install avant-window-navigator on Jaunty alpha6 (which had been updated within the past day):
Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Processing triggers for python-support ...
/var/lib/python-support/python2.6/sqlalchemy/ext/activemapper.py:262: SyntaxWarning: assertion is always true, perhaps remove parentheses?
  assert(version_id_col_object is not None, "version_id_col (%s) does not exist." % version_id_col)

Version installed:
python-sqlalchemy:
  Installed: 0.4.8-1
  Candidate: 0.4.8-1

[Piotr Ożarowski (piotr)]

FTR: problem doesn't exist in python-sqlalchemy 0.5.2-1 (and all reverse dependencies are already 0.5 compatible in Debian unstable)

[Paul Larson (pwlars)]

So it looks like I picked it up as a dependency to awn-applets-python-core. Does that mean that awn-applets-python-core dependencies need to be updated (along with all the others) to point depend on 0.5.2-1? Or if all of them are compatible then perhaps 0.5.2-1 should be the only option for python-sqlalchemy?

$ apt-cache rdepends python-sqlalchemy
python-sqlalchemy
Reverse Depends:
  sagemath
 |python-turbogears
  python-sqlalchemy-doc
  python-sqlalchemy-doc
  python-sasync
 |python-pylons
  python-migrate
  python-imdbpy
  python-elixir
  python-beaker
  python-authkit
  gourmet
  awn-applets-python-core
  anki

[Piotr Ożarowski (piotr)]

from that list: anki and python-migrate are still not compatible and need syncing, see also #316429

BTW: fixing this bug should be easy, though (assert(...) is used only in one line in 0.4.8-1)

(I will not provide patch as there's no python2.6 in Debian yet)

[Edgard Pineda (edgard-pineda)]

I've got the same error with a Jaunty daily-build of 13-Apr-2009:

...
Setting up avant-window-navigator (0.3.2-0ubuntu1) ...

Setting up awn-manager (0.3.2-0ubuntu1) ...

Setting up awn-applets-c-core (0.3.2.1-0ubuntu2) ...

Setting up awn-applets-python-core (0.3.2.1-0ubuntu2) ...

Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Processing triggers for python-support ...
/var/lib/python-support/python2.6/sqlalchemy/ext/activemapper.py:262: SyntaxWarning: assertion is always true, perhaps remove parentheses?
  assert(version_id_col_object is not None, "version_id_col (%s) does not exist." % version_id_col)

[Vladimir Osintsev (osintsev)]

I get a similar message when try to install a package.

My system is Jaunty right after `apt-get update && apt-get upgrade`

[Benjamin Rubin (bnrubin)]

Confirmed on a post-release install of python-sqlalchemy alone.

[Luke Faraone (lfaraone)]

Fixed in Karmic.