[Django] #29218: Custom URL converters break direct urls.py modules import

[Django]

#29218: Custom URL converters break direct urls.py modules import
-----------------------------------------+------------------------
Reporter: Sergey Fursov | Owner: nobody
Type: Bug | Status: new
Component: Core (URLs) | Version: 2.0
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 |
-----------------------------------------+------------------------
Hi.

I found this problem after conversion all urls in one of my projects to
modern named params.
I created custom URL Converter class and registered it in root url conf
I test my project code using py.test with enabled `doctest-modules`
option. With this option py.test imports all modules and search docstring
tests in each. Same happens with individual urls.py modules, but direct
module import fails with next stacktrace:
{{{
api/urls.py:86: in <module>
name='module',
/usr/local/lib/python3.6/site-packages/django/urls/conf.py:70: in _path
pattern = Pattern(route, name=name, is_endpoint=True)
/usr/local/lib/python3.6/site-packages/django/urls/resolvers.py:242: in
__init__
self.converters = _route_to_regex(str(route), is_endpoint)[1]
/usr/local/lib/python3.6/site-packages/django/urls/resolvers.py:225: in
_route_to_regex
"URL route '%s' uses invalid converter %s." % (original_route, e)
E django.core.exceptions.ImproperlyConfigured: URL route
'modules/<slug:slug>/<uid:uid>/' uses invalid converter 'uid'.
}}}

I'm not sure if this issue should be solved inside Django itself, but I
thought it would be helpful to report it.

--
Ticket URL: <https://code.djangoproject.com/ticket/29218>
Django <https://code.djangoproject.com/>
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[Django]

#29218: Custom URL converters break direct urls.py modules import

-------------------------------+--------------------------------------

Reporter: Sergey Fursov | Owner: nobody
Type: Bug | Status: new
Component: Core (URLs) | Version: 2.0

Severity: Normal | Resolution:

Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------+--------------------------------------

Comment (by Tim Graham):

The report doesn't help me understand the issue in much detail. Can you
debug it a bit further so we can understand what's going on (to help
decide how to proceed), or at least provide a minimal sample project so
that someone else can?

--
Ticket URL: <https://code.djangoproject.com/ticket/29218#comment:1>

[Django]

#29218: Custom URL converters break direct urls.py modules import

-------------------------------+--------------------------------------

Reporter: Sergey Fursov | Owner: nobody

Type: Bug | Status: closed

Component: Core (URLs) | Version: 2.0

Severity: Normal | Resolution: invalid

Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------+--------------------------------------
Changes (by Simon Charette):

* status: new => closed
* resolution: => invalid

Comment:

From your provided stackstrace it looks like the message points at the
correct error `URL route 'modules/<slug:slug>/<uid:uid>/' uses invalid
converter 'uid'.`

Django doesn't ship with a `uid` path converter, it should be `uuid`.

Please rely on [wiki:TicketClosingReasons/UseSupportChannels our support
channels] to assert Django is actually at fault before filling such a
ticket next time. Thanks!

--
Ticket URL: <https://code.djangoproject.com/ticket/29218#comment:2>