Optimizing website access speed, using compression, consolidation and cache techniques
In today's internet era, website speed has become one of the key indicators of users ' experience of the site. For the python site, optimizing the speed of access to the site is a key task. In this paper, we will present some techniques for front-end optimization, including compression, consolidation and caches, to improve the speed of access to the python website。
I. Compressed static resources
Static resources in websites such as css stylesheets and javasCript script files, which are usually text-type files, can be reduced by reducing the size of the file and thus the time of transmission。
In python, we can compress static files using the gzip module. Here's an example code:
IMport gzip (file path): as f in: as f out: f out. Writelines(f in)
Here, we use the gzip. Open function to save the compressed file after the extension of the original file with ". Gz". By compressing static resources, the size of the file can be reduced, thereby increasing the speed of transmission。
Consolidated request
In web pages, multiple css stylesheets and javas are often citedCript script file. Each request for these documents required a http request, which resulted in additional delays。
To reduce the number of requests from http, we can use multiple css style sheets and javasCript script file merged into one file. In this way, only one http request could be launched to obtain all static resources。
The following is an example code for combining css stylesheet files:
Python 3. 14. 3
The official python extension of microsoft is the largest extension of vs code installation (209m+). Integrated intellisense (through pylance), debugging (through python debugger), code checking, formatting, remodelling and unit testing. Supports jupyter notebook, virtual environmental management and multipython version switching。
Download
I'm sorry, but i'm sorry. = ' for file path in file list: with open as f: css = f. Read() common css+=css as f: f. Write (compined css)
Here we achieve the merger request by reading multiple css stylesheet files into a string, and then writing this string into a consolidated css file。
Iii. Cachestatic resources
When users visit the website, the browser slows down static resources locally, thereby reducing requests for servers。
On the python site, we can further speed access by setting up the cache-control field in the http response header to control the browser's cache of static resources。
Here's an example code:
♪ from flash i ♪I'm sorryI'm sorry. App = flash(name ) @app. RouteI'm sorry. Def service static filename: respo= make respo('static', filename) = 'public, max-age=31536,000' i don't know what you're talking about
Here we send static resource files using the send fram directory function provided by the flask framework, and create a http response object by creating the make response function. And then we set up the restonse. Heads
'cache-control'
Field to set the browser cache behaviour, the default is a year。
By setting the cache, the browser can obtain static resources directly from the local cache, thereby increasing the speed of access。
Summary:
Through the above front-end optimization techniques of compression, consolidation and cache, we can increase the speed of access to the python site. Reduced transmission time by compressing static resources; reduced http requests through consolidation of requests; reduced server requests through cache static resources. These optimization techniques can be well applied in the development of the python website。
Python's free learning notes (in-depth): immediately available
In learning your notes, you will explore python's core concepts and advanced skills
