/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated

[Anders Kaseorg]

Binary package hint: lsb-release

After the recent Python 2.6 transition, running lsb_release in Jaunty with any options yields a warning on stderr:

$ lsb_release -a
/usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated
  import sets
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu jaunty (development branch)
Release: 9.04
Codename: jaunty

[Anders Kaseorg (andersk)]

Confirming from duplicate.

[Anders Kaseorg (andersk)]

Here’s a debdiff to replace the deprecated Python sets module with the builtin set type, which works in python >= 2.4 and doesn’t spew warnings on 2.6.

[Anders Kaseorg (andersk)]

This is built in my PPA, and confirmed working:
<https://launchpad.net/~anders-kaseorg/+archive/ppa>

[Colin Watson (cjwatson)]

I know python 2.3 isn't particularly important any more, but I still hate breaking compatibility when it's easy not to (particularly since you didn't change dependencies or anything to indicate the new requirement). How about this:

try:
    set # introduced in 2.4
except NameError:
    import sets
    set = sets.Set

... and then just use 'set' instead of 'sets.Set' in the rest of the program?

[Anders Kaseorg (andersk)]

Reasonable. Here’s a debdiff to do that instead.

[Launchpad Janitor (janitor)]

This bug was fixed in the package lsb - 3.2-20ubuntu4

---------------
lsb (3.2-20ubuntu4) jaunty; urgency=low

  * Replace the deprecated Python sets module with the builtin set type,
    if it is available (python >= 2.4), to avoid spewing warnings for
    python >= 2.6. (LP: #336436)

 -- Anders Kaseorg <email address hidden> Mon, 02 Mar 2009 03:35:14 -0500

[Mark Greenwood (fatgerman)]

Just tested on Jaunty with all updates and I can confirm the fix.

[Artur Rona (ari-tczew)]

 lsb (3.2-21) unstable; urgency=low

   * Provide lsb_release module for Python applications. (Closes: #486262)
   * Change working directory to $PWD in start-stop-daemon, for better
     compatibility with LSB applications. (Closes: #519817)
   * return 3 rather than 4 in pidofproc if a PID file is specified and
     the daemon is not found. (Closes: #494623)
   * Improve handling of future testing versions unknown to lsb-release.
     Patch by Jan Muszynski (Closes: #517594).
   * Fix DeprecationWarning with Python 2.6; patch from Colin Watson and
     Anders Kaseorg. (Closes: #517819)
   * Bypass guess_debian_release() if /etc/lsb-release is complete.
     Patch from Scott James Remnant. (Closes: #511952)
   * 'time' was missing from lsb-core dependencies. (Closes: #510488)
   * Demote lsb to a suggestion by lsb-release. (Closes: #509611)

 -- Chris Lawrence <email address hidden> Thu, 19 Mar 2009 16:29:25 -0500