After the update to svn 5734 database cannot be upgraded

[anonymous]

After the update of trac 0.11 revision 5734 (0.11dev-r5732), when I run trac-admin /location upgrade --no-backup this command returns:
Command failed: 'NoneType?' object is not iterable

I use a postgres database backend.

[ecarter]

Thank you for the report!

If you could provide a bit more detail, it'll help me solve this quicker:

• Can you provide a backtrace?
• What OS/distribution are you using?
• What version of python are you using?

[ecarter]

Guesses of where this might be (but no way to check yet):

• database upgrade​
• trac.ini upgrade​

[Dave Abrahams <dave@…>]

retracile asked me to try reproducing this by creating a DB in 0.10.4 and upgrading it to 0.11dev. As I expected, the report was:

Database is up to date, no upgrade necessary.

[nulleke76@…]

I checked the db21 update that came with this svn revision. I noticed that it tries to update reports that have been changed by me already. I manually did an update of the database version number. Now everything works as expected.

[cboos]

Same as #5593.

Given

list(None)

Python 2.5 now errors with: TypeError: 'NoneType' object is not iterable instead of: TypeError: iteration over non-sequence as it did with 2.3 and 2.4.