#35816: Django Template Language doesn't support all float literals
-------------------------------------+-------------------------------------
Reporter: Lily Foote | Owner: Hailey
| Johnson
Type: Bug | Status: closed
Component: Template system | Version: 5.1
Severity: Normal | Resolution: fixed
Keywords: | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Jon Banafato):
I have a question about template behavior that was changed by this feature
(please let me know if I should post this as a new ticket instead of
continuing conversation here). While [https://github.com/jazzband/django-
hosts/issues/176#issuecomment-2961158554 investigating CI test failures
for django-hosts], I observed that Django no longer throws a
TemplateSyntaxError for template variable names containing dashes and
instead appears to treat them as regular template variable names. I did
not see any notes in the
[https://docs.djangoproject.com/en/dev/ref/templates/language/#variables
template language documentation] or the templates section of the
[https://docs.djangoproject.com/en/dev/releases/6.0/#templates release
notes] for 6.0. I believe this change was introduced by the commit
associated with this issue, and I've included an example of the behavioral
change below.
On commit 8df5ce80d26824ce72af41edc03275d435de9432, the following code
fails with a TemplateSyntaxError as expected.
{{{
>>> from django.template import Template, Context
>>> template = Template("Hello, {{ first-name }}")
Traceback (most recent call last):
...
django.template.exceptions.TemplateSyntaxError: Could not parse the
remainder: '-name' from 'first-name'
}}}
On commit 5183f7c287a9a5d61ca1103b55166cda5, the following code parses the
template and renders the `first-name` provided.
{{{
>>> from django.template import Template, Context
>>> template = Template("Hello, {{ first-name }}")
>>> template.render(Context({"first-name": "Jon"}))
'Hello, Jon'
}}}
Does this warrant a new ticket for a behavior and / or documentation
change? I'd be happy to help where possible, but I'm not very familiar
with this change or the Django development process in general, so I am
looking for guidance. Thanks!
--
Ticket URL: <https://code.djangoproject.com/ticket/35816#comment:19>
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