Programming VIP

Full steps of Douban movie big data project 1. Douban reptile: When I started to write Douban TV series crawler, I thought it was very simple, but in practice, there was an IP sealing situation, which led to my distress for a long time, and now I finally wrote it No more nonsense, just go to the code: The run function is ...

1. Implement a decorator that determines the presence of the redis server from functools import wraps from flask import g from rmon.common.rest import RestException class ObjectMustBeExist: """The ornament is used for a Server Instance deletion check to ensure operation object must exist """ def __init__(self, object_class): ...

brief introduction Flask is a lightweight WSGI Web application framework. It is designed to make getting started quick and easy and can be extended to complex applications. Originally a simple wrapper around Werkzeug and Jinja, it has become one of the most popular Python Web application frameworks. Flash source code Flash User Guide 1, ...

catalogue 1, Project requirements 2, Project architecture 3, Project source code analysis 1. http server: Python Flask framework; http code Interface resolution 2. File monitoring: Python win32con module; Monitoring code Code parsing 3. Data analysis: Python Pandas library; Pandas Series code File example 4. Data visualization: ech ...

Create a class. A class corresponds to a table in a database, and the data attributes of the class correspond to the field names in the table. This class is called mapping class. 1, Proactively create mappings Classes mapped using the Declarative system are defined according to the base class. In other words, each mapped class needs to inhe ...

Parameter verification of flash development skills I usually use or learn some flash development skills in development. I need to have a solid foundation of flash. 1. Request parameter classification Generally speaking, the request sent by the front end roughly includes the following three types of parameters: url path parameters, url query ...

​ 1, Download docker stay Docker official website Find the corresponding mac download in. ​ After clicking in, I choose the version of the corresponding chip of my computer and start downloading. I own m1 chip. 2, Install and run docker on MAC computer 1. Double click Docker DMG open the installer and drag the Docker icon to the Applicatio ...

1, Flask Foundation [example 1] write the first flash program, and the code is as follows: from flask import Flask # 1. Import Flask class """ 2.Create an instance of this class. The first parameter is the name of the application module or package. If a single module is used(Such place)，Should be used__name__. The name of the module w ...

First of all, what is Liuli? This is an open source project I recently developed. The main purpose is to enable friends with reading habits to quickly build a multi-source, clean and personalized reading environment.Why Liuli?Liuli was originally named 2C, and the friends of the communication group behind provided the name of Liuli, which is ta ...

Scenarios and phenomena to be optimized The project gives the flash gevent framework, which will periodically (5 seconds) write a json file to the file system The file size is 40M The phenomenon is that gevent will not switch the code of other processes until the file is written principle When reading and writing files, linux will block ...