It means that there is no line in urls.py of the main application with the
name as 'display_laptop'. Probably you are confused with the action and
name. Action should be a callable and should be imported in urls.py file.
Name is the name of the route and it appears within quote (normally).
Typically a url is: [url_pattern, callable, {additional parameters or
empty}, name='display_laptop']
if you are going to write a function called display_laptop, import it into
the urls.py and in the above url, replace callable with display_laptop (no
quote); that is:
from .... import display_laptop
urlpatterns = [ [.....], [url_pattern, display_laptop,{..},
name='display_laptop'],....]
Cheers.
=============================================
On Monday, August 12, 2019 at 4:59:40 PM UTC+5:30, goitom negash wrote:
>
> the following error is displayed when i try to write a function named as
> display_laptop to display the available laptops in the backend.
> NoReverseMatch at /
>
> Reverse for 'display_laptop' not found. 'display_laptop' is not a valid view
> function or pattern name.
>
> Request Method: GET
> Request URL: http://127.0.0.1:8000/
> Django Version: 2.2.3
> Exception Type: NoReverseMatch
> Exception Value:
>
> Reverse for 'display_laptop' not found. 'display_laptop' is not a valid view
> function or pattern name.
>
> Exception Location:
> C:\Users\Goitom\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\urls\resolvers.py
>
> in _reverse_with_prefix, line 668
> Python Executable:
> C:\Users\Goitom\AppData\Local\Programs\Python\Python37-32\python.exe
> Python Version: 3.7.4
> Python Path:
>
> ['C:\\Users\\Goitom\\Desktop\\shop',
>
> 'C:\\Users\\Goitom\\AppData\\Local\\Programs\\Python\\Python37-32\\python37.zip',
> 'C:\\Users\\Goitom\\AppData\\Local\\Programs\\Python\\Python37-32\\DLLs',
> 'C:\\Users\\Goitom\\AppData\\Local\\Programs\\Python\\Python37-32\\lib',
> 'C:\\Users\\Goitom\\AppData\\Local\\Programs\\Python\\Python37-32',
> 'C:\\Users\\Goitom\\AppData\\Roaming\\Python\\Python37\\site-packages',
>
> 'C:\\Users\\Goitom\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages']
>
> Server time: Mon, 12 Aug 2019 11:12:59 +0000
>
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