#19738: "manage.py shell" on a fresh project raises RuntimeWarning about naive
datetime, if IPython is installed
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Reporter: carljm | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.4
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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IPython uses SQLite internally to store shell session history. At the
beginning and end of every shell session, it issues a SQLite query to
get/save the history. For some reason this query includes a (timezone-
naive) datetime.
Django's SQLite DB backend registers a global datetime adapter function
which issues a warning in case it receives a naive datetime when timezone
support is activated.
In combination, this means that on a fresh `startproject` if you fire up
`manage.py shell` without making a single change to settings, if IPython
is installed you'll get "RuntimeWarning: SQLite received a naive datetime
(2013-02-04 17:14:13.070091) while time zone support is active." on shell
startup and exit. That's an ugly experience for a newcomer to Django - it
_looks_ to them as if Django is shipping a broken setup by default.
Probably this is Django's fault for registering a potentially-noisy
process-global SQLite adapter, and we should consider whether to just
remove that warning in the adapter. The model layer will already warn
about naive datetimes, so this warning is only needed for raw SQL.
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Ticket URL: <https://code.djangoproject.com/ticket/19738>
Django <https://code.djangoproject.com/>
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