HTML minifier for Python frameworks (not only Django, despite the name).
Project description
django-html is an HTML minifier for Python, with full support for HTML 5. It supports Django, Flask and many other Python web frameworks. It also provides a command line tool, that can be used for static websites or deployment scripts.
Why minify HTML code?
One of the important points on client side optimization is to minify HTML. With minified HTML code, you reduce the size of the data transferred from the server to the client, which results in faster load times.
Installing
To install django-htmlmin, run this on the terminal: :
$ [sudo] pip install django-htmlminUsing the middleware
All you need to do is add two middlewares to your MIDDLEWARE_CLASSES and enable the HTML_MINIFY setting:
MIDDLEWARE_CLASSES = (
# other middleware classes
'htmlmin.middleware.HtmlMinifyMiddleware',
'htmlmin.middleware.MarkRequestMiddleware',
)Note that if you’re using Django’s caching middleware, MarkRequestMiddleware should go after FetchFromCacheMiddleware, and HtmlMinifyMiddleware should go after UpdateCacheMiddleware:
MIDDLEWARE_CLASSES = (
'django.middleware.cache.UpdateCacheMiddleware',
'htmlmin.middleware.HtmlMinifyMiddleware',
# other middleware classes
'django.middleware.cache.FetchFromCacheMiddleware',
'htmlmin.middleware.MarkRequestMiddleware',
)You can optionally specify the HTML_MINIFY setting:
HTML_MINIFY = TrueThe default value for the HTML_MINIFY setting is not DEBUG. You only need to set it to True if you want to minify your HTML code when DEBUG is enabled.
Excluding some URLs
If you don’t want to minify all views in your app and it’s under a /my_app URL, you can tell the middleware to not minify the response of your views by adding a EXCLUDE_FROM_MINIFYING setting on your settings.py:
EXCLUDE_FROM_MINIFYING = ('^my_app/', '^admin/')Regex patterns are used for URL exclusion. If you want to exclude all URLs of your app, except a specific view, you can use the decorator @minified_response (check the next section above).
Keeping comments
The default behaviour of the middleware is to remove all HTML comments. If you want to keep the comments, set the setting KEEP_COMMENTS_ON_MINIFYING to True:
KEEP_COMMENTS_ON_MINIFYING = TrueUsing the decorator
django-htmlmin also provides a decorator, that you can use only on views you want to minify the response:
from htmlmin.decorators import minified_response
@minified_response
def home(request):
return render_to_response('home.html')Decorator to avoid response to be minified
You can use the not_minified_response decorator on views if you want to avoid the minification of any specific response, without using the EXCLUDE_FROM_MINIFYING setting:
from htmlmin.decorators import not_minified_response
@not_minified_response
def home(request):
return render_to_response('home.html')Using the html_minify function
If you are not working with Django, you can invoke the html_minify function manually:
from htmlmin.minify import html_minify
html = '<html> <body>Hello world</body> </html>'
minified_html = html_minify(html)Here is an example with a Flask view:
from flask import Flask
from htmlmin.minify import html_minify
app = Flask(__name__)
@app.route('/')
def home():
rendered_html = render_template('home.html')
return html_minify(rendered_html)Keeping comments
By default, html_minify() removes all comments. If you want to keep them, you can pass ignore_comments=False:
from htmlmin.minify import html_minify
html = '<html> <body>Hello world<!-- comment to keep --></body> </html>'
minified_html = html_minify(html, ignore_comments=False)Using command line tool
If you are not even using Python, you can use the pyminify command line tool to minify HTML files:
$ pyminify index.html > index_minified.htmlYou can also keep the comments, if you want:
$ pyminify --keep-comments index.html > index_minified_with_comments.htmldevelopment
Source hosted at GitHub
Report issues on GitHub Issues
Pull requests are very welcome! Make sure your patches are well tested.
Running tests
If you are using a virtualenv, all you need to do is:
$ make testcommunity
IRC channel
#cobrateam channel on irc.freenode.net
Changelog
You can see the complete changelog on the Github releases page.
LICENSE
Unless otherwise noted, the django-htmlmin source files are distributed under the BSD-style license found in the LICENSE file.
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