Ways to use SQL in your company:1. Write Django:orm (Relational object mapping),2. Write flask and other: There are two ways:(1) Native SQL: There are two options for using native sql:A. Pymysql (both Python2 and Python3 support)B. MYSQLDB (Python2 support only)(2) Sqlachemy (also an ORM framework, similar to Django's ORM)The inside of the ORM will call Pymysql or MYSQLDB, so the essence is to Pymysql and MySQLdbI.
Installing the Flask-migrate plugin(venv) $ pip Install Flask-migrateNotice in the virtual environment (because the flask environment is installed in the virtual environment)Installing Flask-script enables Python to support command-line operationsPip Install Flask-scriptCrea
1 PrefaceSince its inception, Docker has led the technology boom in lightweight virtualization containers. In this trend, Google, IBM, Redhat and other industry leaders have joined the Docker camp. While Docker is still primarily based on the Linux platform, Microsoft has repeatedly announced support for Docker, from p
, different Web servers and different Web applications can be paired, as long as they follow the WSGI specification.Flask Framework is used in the development of the app part, in the development environment we can simply use the flask built-in development with the Web server, and in the production environment with better performance of professional Web servers, such as Apache, Gunicorn and so on.2 Flask Pro
Construction Address:
Description: Flask supports the construction of URLs through view functions and parameters, and future modification URLs can be modified at once, and the default build escapes special characters and Unicode data, which we do not need to process ourselves, and are not only supported in the context but also in the template file.
#!/usr/bin/env python#-*-coding:utf-8-*-"" "# # authors:limanman# 51ctobg:http://xmdevops.bl
Reprint please indicate the source:https://blog.csdn.net/forezp/article/details/80158062This article is from Fang Zhibong's blog container prep installation docker, version 1.13 or 1.13 above. Read the content of the first article to give your Docker environment a quick test to make sure all the work is ready:
Docker run Hello-world Introduction
It's time to star
Flask-mail can connect to the SMTP server in the configuration to send mail, if the SMTP server is not configured, will be connected to localhost by defaultI. Configuration and initialization(1) Flask application Configuration#configuration OptionsMail_server ='smtp.qq.com' #Mail ServerMail_port = 25#PortMail_use_tls = False#Transport Layer Security protocolMail_use_ssl = False#Secure Sockets Layer protocol
Flask registers the variables to the template, and flask registers the template.
When using the python Flask framework and referring to Flask Web development, we found that the Permission. FOLLOW variable can be used globally.
However, I am trying to confirm that the variable is not defined. After searching, the answ
inside.By $docker node LS, you can see the running status of all swarm nodes: The creation process of the P.s.swarm cluster consists of the following three steps:
Discovers individual nodes in a docker cluster, collects node status, role information, and monitors node status changes
Initializing the Internal dispatch (scheduler) module
Create and start the API Listener service module
# # Installation:Flask-restful needs to run on Python2.6 or Python3.3 in the Flask 0.8 or more versions. Install with PIP install flask-restful.# # # Basic use:1. Import ' API ' from ' flask_restful ' to create an ' API ' object.2. Write a view function, let him inherit from ' Resource ', then in this, use the way you want to define the appropriate method, such as you want to use this view only the ' post '
Simple blog project creation based on Flask (global variable setting and import module), flask global variable
This is a course I learned in the Lab Building (https://www.shiyanlou.com/courses/29/labs/264/document)
But what is different from the original tutorial is that I use a mysql database, so there are many differences in the configuration file. Here I want to share with those who do not want to insta
Tags: run trap bootstra sed style key ase Roo 127.0.0.1In the Flask project, establish a models.py in the configuration database as follows: 1 #-*-coding:utf-8-*-
2 ImportOS3 fromFlaskImportFlask4 fromItsdangerousImportTimedjsonwebsignatureserializer as Serializer5 fromFlaskImportCurrent_app6 from.ImportDB7 fromFlask_sqlalchemyImportSQLAlchemy8 fromWerkzeug.securityImportGenerate_password_hash, Check_password_hash9 fromFlask_loginImportusermixi
In the previous code, the view function returned a string, and the content of the HTML file returned in the actual development was actually a string. Below is a summary of several ways in which flask can be used as a response. 1, response string.
This has been explained earlier, but it should be noted that in fact, every time a view function responds with a status code. For example, the status code is 200, indicating that the request has been successf
cache frequently accessed data, fetch data from the cache each time it is accessed, and return it directly, and no longer read from the database.
Flask-cache: An extension specifically responsible for data caching.
Installation:pip install flask-cache
Use: fromFlask_cacheImportCache# Configuration# Cache Typeapp.config[' Cache_type '] =' Redis '# Hostapp.config[' Cache_redis_host '] =' 127.0.0.1 '# p
First, to talk about the hole encountered:1. Package references for Linux under:1 """2 The path structure is as follows:3 ./project4 ./bin5 ./api6 """7 #to reference the contents of apilib.py in the API directory under main.py in the bin directory8 ImportSYS9Sys.path.append (".. /")Ten fromApi.apilibImportFunc2. When running large system, the execution directory of the script that you initiated under/root is also/root, so pay attention to the absolute path and relative path in programming.3, un
Flask provides a view template that separates business logic from performance logic, conforms to people's development habits, and facilitates maintenance.
Here you'll learn how to render the template, and then pass the dynamic Data to the template.
FLASK provides the Render_template function, which is first introduced: From flask import
Tags: ret ack user port RAC ESC commit PRE ASEOne installation Flask-sqlalchemy Pip Install Flask-sqlalchemy Two import related modules and objects from Import SQLAlchemy Three configurations # here is the configuration Sqlalchemy_database_ URI, the preceding mysql+pymysql refers to the type of the database and the driver type # after Username,pwd,addr,port, dbname represents user name, password, addr
Tags: Content default method Pre tab Welcome flag bit Data Sheet impInstalling Flask-sqlalchemyPip Install Flask-sqlalchemyLoad SQLAlchemyAdd in hello.py From Flask.ext.sqlalchemy import SQLAlchemy
Initialize settingsAdd in hello.py Set Database link Address 1 app.config['sqlalchemy_database_uri'mysql+mysqldb:// :@/charset=utf8' Create User Class1 classUser (db. Model):2 __tablename__='username'
3ID =
Uploading files and accessing uploaded filesHere is a picture to show how flask uploads a fileFirst, write a simple front-end page upload.html, write a file to upload the formBack-End Debug Breakpoint debuggingAfter getting to the file, of course, we need to save the file. Create a new directory under the project media to save the uploaded fileFlask also provided us with a function to detect the name of the file, recommended to use, improve security16
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