Django中“第0行的模板错误”是什么意思？

Question

I have got an error on a django site that i am working on which is a zero division error. I couldn't find the source of the error which I am thinking that is because of likely mathfilter but still not sure.

What I am asking here is that django gives that error with saying it occurs at line 0 which I don't know what that exactly mean.

This is the beginning of the template file:

1   {% extends "main.html" %}
2   {% include "ru.html" %}
3   {% load staticfiles %}
4   {% load mathfilters %}
5   {% load humanize %}

Only thing that occurs to me when I see this (error at line 0) is that to look at the main.html file. But I couldn't find anything that might cause this zero division error.

• How to debug?
• What might cause this error?
• What does error at line 0 means and which file should i debug then?
• Which filters might cause this?
• Any possible version problem?

Answer 1

IMHO, this has nothing to deal with divide by zero , this is a reverse URL misfunction.

While debugging, I had different line numbers : 0, 13, 15, etc… each time the line mentioned had no bad reverse URL call.

I had this message :

Error during template rendering
In template …project/templates/base.html, error at line 0

Reverse for 'search' not found. 'search' is not a valid view function or pattern name.

How I solve it :

1. Open all templates concerned by the URL which gives me this message
2. Search over files where I use search , specially in a {% url 'search' %} tag
3. Rename tag by the good URL name (defined in the app url.py ), in my case it was foo-search )

Answer 2

当除法或模运算的第二个参数为零时，将引发ZeroDivisionError异常。“ main.html”文件或链接该文件的其他文件中必须有这样的表达式。