Python Web framework at this stage the three main contrast Django Tornado Flask
1.Django main feature is the large and integrates a number of components, such as: Models Admin Form, etc., whatever you get less than, anyway, it is all there, it belongs to the versatile framework
2.Tornado main feature is asynchronous non-blocking native, occupy absolute advantage in the IO-intensive applications and multitasking, are preoccupied framework
3.Flask main features of small and light, the native component is almost zero, the three parties to provide components, please refer to Django very comprehensive, is dapper-frame
Django is usually used for large Web applications due to the built-in component is strong enough so you can use the Django development in one go
Tornado API typically used for back-end applications, games service background, its internal implementation of a number of asynchronous non-blocking was really steady
Flask is usually used in small applications and quickly build applications, its powerful tripartite library, enough to support a large-scale Web applications
Django advantage is large and shortcomings will be exposed, and so many resources all at once loaded, will certainly be a part of the waste of resources
Tornado advantage is asynchronous, the disadvantage is clean, not even a Session Support
Flask advantage is lean and simple, the disadvantage is that you will not!
Flask installation
pip install flask
The first program of the flask
# - * - Coding: UTF-. 8 - * - # @time: 2019/7/10 9:36 from Flask Flask # Import introduced class Flask app = Flask (__ name__) # Flask instantiated objects App
app.debug = True # automatic restart service
# app.config["DEBUG"] = True
route decorator @ app.route ( "/ index") # app in
def index (): # view function
return "hello word" # response value
IF the __name__ == '__main__':
app.run ( "0.0.0.0" , 9876) # ip port designated start Flask web service
Get page
