[Django] #28730: Large integer literals lose precision in templates
Django
-------------------------------------------+------------------------
Reporter: Fraser Nevett | Owner: nobody
Type: Uncategorized | Status: new
Component: Template system | Version: 1.11
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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While looking at #28721, I realised that there is loss of precision on
large integer literals:
{{{
#!python
>>> from django.template import Template, Context
>>> Template('{{ 999999999999999999999999999 }}').render(Context())
u'1000000000000000013287555072'
}}}
This happens because the code tries to first convert literal values to a
**float** and then from the **float** to an **int**, which is a lossy
operation.
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Ticket URL: <https://code.djangoproject.com/ticket/28730>
Django <https://code.djangoproject.com/>
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Django
Reporter: Fraser Nevett | Owner: nobody
Component: Template system | Version: 1.11
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 Fraser Nevett):
* type: Uncategorized => Bug
--
Ticket URL: <https://code.djangoproject.com/ticket/28730#comment:1>
Django
Reporter: Fraser Nevett | Owner: nobody
Component: Template system | Version: 1.11
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by Tim Graham):
* stage: Unreviewed => Accepted
--
Ticket URL: <https://code.djangoproject.com/ticket/28730#comment:2>
Django
Reporter: Fraser Nevett | Owner: nobody
Component: Template system | Version: master
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by Claude Paroz):
* has_patch: 0 => 1
* version: 1.11 => master
Comment:
[https://github.com/django/django/pull/9267 PR]
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Ticket URL: <https://code.djangoproject.com/ticket/28730#comment:3>
Django
Reporter: Fraser Nevett | Owner: nobody
Component: Template system | Version: master
Severity: Normal | Resolution:
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by Tim Graham):
* stage: Accepted => Ready for checkin
--
Ticket URL: <https://code.djangoproject.com/ticket/28730#comment:4>
Django
Reporter: Fraser Nevett | Owner: nobody
Component: Template system | Version: master
Keywords: | Triage Stage: Ready for
| checkin
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by Claude Paroz <claude@…>):
* status: new => closed
* resolution: => fixed
Comment:
In [changeset:"9ec7d8e514e09636b0ab4bcac74b5f7a5be335a3" 9ec7d8e]:
{{{
#!CommitTicketReference repository=""
revision="9ec7d8e514e09636b0ab4bcac74b5f7a5be335a3"
Fixed #28730 -- Fixed loss of precision for large integer literals in
templates
Thanks Fraser Nevett for the report and Tim Graham for patch edits.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/28730#comment:5>