Python MongoDB. Python OpenCV. Python Selenium. Python Tkinter. Python Kivy. Data Visualization. Python Examples and Quiz. Table of Contents. Save Article. Improve Article. Like Article. Last Updated : 27 Sep, Template backend to be used, For example Jinja.
DjangoTemplates' ,. Directories for templates. Previous Django ModelFormSets. Next Views In Django Python. Recommended Articles. Template engines are available in django. DjangoTemplates' to configure a Django template engine. This generic name was kept for backwards-compatibility. These callables take a request object as their argument and return a dict of items to be merged into the context.
See RequestContext for more information. If it is True , the fancy error page will display a detailed report for any exception raised during template rendering.
This report contains the relevant snippet of the template with the appropriate line highlighted. Each Loader class knows how to import templates from a particular source.
Optionally, a tuple can be used instead of a string. The first item in the tuple should be the Loader class name, and subsequent items are passed to the Loader during initialization. See Loader types for details. See How invalid variables are handled for details. It defaults to 'utf-8'. This can be used to add new libraries or provide alternate labels for existing ones. For example:. Requires Jinja2 to be installed:.
Jinja2' to configure a Jinja2 engine. It defaults to 'jinja2. Django invokes that callable and passes other options as keyword arguments. Environment as described below. You can then call that function in the template:. Some Django templates context processors return a fixed value.
Unless all of these conditions are met, passing a function to the template is more in line with the design of Jinja2. The default configuration is purposefully kept to a minimum. If a template is rendered with a request e. In order to use Django-specific APIs, you must configure them into the environment. Since Jinja2 supports passing arguments to callables in templates, many features that require a template tag or filter in Django templates can be achieved by calling a function in Jinja2 templates, as shown in the example above.
Active 4 months ago. Viewed 29k times. Everything is fine when I add the simple callback functions for "Writing your first view". I hit the snag when I get to "Write views that actually do something. Loader', 'django. Loader' My directory structure looks like this: What did I miss? Is the settings. Please advise. Improve this question. Which one are you really using?
Can you post your folder hierarchy? The first entry is from my settings. What happens when you put the value from the debug traceback into settings.
Now my app and the admin URLs are having an issue. Add a comment. With this in mind, Django is flexible—it does not require you to use the DTL. All versions of Django since Django 1.
A Django template is a text file. To turn a plain text file into a Django template, the template designer adds template tags , variables and filters.
A template tag does something. Some example functions performed by template tags are:. A template variable is something. Template variables are passed to the template at runtime in the context. For example:. With few exceptions, the methods and attributes available to the Python object are also accessible in the template via the dot operator. Filters modify a variable for display. You apply a filter to a variable using the pipe character. There are dozens of built-in filters; here are some examples:.
This is a sample of the template tags, variable methods and filters available in Django. Chapter 11 includes an exercise covering all common tags and filters, complete with example implementations of each.
The most important line to note here is line 5. Once you have added the folder, your directory tree should look like this:. Because Django uses short-circuit logic when searching for templates. This can be a problem when you have two apps in a project with a template with the same name. Say you have created an index. Your folder structure will look like this:. When you tell Django to load the template index. We solve this problem by namespacing our templates. Namespacing templates is simple—we add a folder named after the app to our templates folder.
This is what the above example looks like after namespacing the templates:. As with most things in Django, namespacing templates is a convention, not a hard and fast rule. But, if you want maximum portability for your apps and to avoid some headaches later on, it is a convention that you would do well to follow.
Before moving on, add the new folder to your events app. All modern websites have a site template that creates a common look and branding for every page on the website. The most common place for storing site template files in Django is in the website app that Django created automatically for you when you ran startproject. Line 4 looks complicated, but is easy to understand— os. Note that Django will search your DIRS list in the order listed, so keep in mind my previous warnings about templates with the same name when linking to external resources.
We will name this file base. This is plain HTML except for lines 9 and
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