#26205: migrate and other commands fail with TypeError: 'NoneType' object has no
attribute '__getitem__' in schema.py
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Reporter: mrkiwi-nz | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.9
Severity: Normal | Resolution:
Keywords: schema.py PRAGMA | Triage Stage:
NonType migrate | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by mrkiwi-nz):
Regarding not supporting 3.3.6, that's fair enough, but for anyone
following even the most basic getting-started tutorials, the exception
this throws is way beyond what a beginner should be expected to
troubleshoot. Even knowing that it might be a back-end issue, or finding
your version of sqlite3 is not obvious from the exception.
My server (smeserver 8.2/centos 5.11) had been running django (various
versions) for about 2 years fine until I upgraded to django 1.9.2 and
nuked the db and tried to run migrations from scratch. I didn't even have
sqlite3 installed, but So I had to install sqlite3 to even find the
version number of sqlite3.
How about wrapping line 25 in a try: block to ensure a value is returned
from "PRAGMA foreign_keys", or testing the sqlite version like other
backends do (AFAIK) so that a helpful error message can be thrown (rather
than ...NoneType' object has no attribute...)?
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Ticket URL: <https://code.djangoproject.com/ticket/26205#comment:2>
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