Reflection of Python Advanced Usage

1. What is reflection? In the process of program development, we often encounter the requirement that a method in the executing object, or a variable in the calling object, or a field of the object should be assigned, while the method name or field name can not be determined when encoding the code, and need to be input in the ...

Posted by phpfreakjav on Sat, 11 May 2019 22:11:59 +0200

Python list, meta-ancestor

Part of the content is compiled from Python, Little Turtle List: An array of hormones The concept of arrays is to put a large number of data of the same type together one by one, and then indexed by array subscripts. But the basic requirement of arrays is that the data you put together must be of the same type. Because Python ...

Posted by fishown on Sat, 11 May 2019 20:02:05 +0200

Object-Oriented Inheritance and Derivation

1. inheritance 1.1 Concept of Inheritance Inheritance refers to the relationship between classes, what is the relationship between classes, and one of the functions of inheritance is to solve the problem of code reuse.Inheritance is a way to create new classes. In Python, a newly created class can inherit one or more parent classes, which can ...

Posted by Harsh on Sat, 11 May 2019 14:15:06 +0200

Example 1 of kNN Classification: Improving the Matching Effect of Dating Websites with kNN

Catalog Actual combat content kNN algorithm classification using sklearn self-contained Library Converting txt files with non-numeric contents into csv files Using sns.lmplot to plot the relationship between several features Reference material @ Actual combat content Ms. Helen has be ...

Posted by LiamG on Sat, 11 May 2019 09:43:17 +0200

Ali Cloud OSS and Tencent Cloud COS Migrate

Use the migration tools provided in Ali and Tencent's help documents to test the migration objects for storing data. 1. Tencent to AliDocument Links: https://help.aliyun.com/document_detail/56990.html?spm=5176.7851628.6.1079.UqBdXKThe OssImport tool migrates data stored locally and in other clouds to OSS with the following features: The rich ...

Posted by DWaller10 on Fri, 10 May 2019 21:58:41 +0200

Django Basic Concepts

Django Following the framework of the MVC design pattern, MVC is short for the three words Model, View, Controller.Represents models, views, and controllers. Create Project From the command line, first step into a virtual environment where Django is installed Through pycharm #Create Project 1. Command line: django-admin startproject [proje ...

Posted by vboctor on Fri, 10 May 2019 20:16:30 +0200

TensorFlow 2.0+Keras Pit Protection Guide

TensorFlow 2.0 is a big slim for version 1.x, Eager Execution is turned on by default, and Keras is used as the default advanced API.These improvements greatly reduce the difficulty of using TensorFlow. This article describes a tortuous trampling experience using the BatchNormalization of Keras+TensorFlow2.0, which almost destroys all the new f ...

Posted by justphpdev on Fri, 10 May 2019 14:26:03 +0200

Python Grammar Basics

# Direction of variables a = "abc" b = a a = "def" print(a) print(b) def abc print(10/3) # The result is a decimal print(10//3) #The result is an integer print(10%3) # Remainder 3.3333333333333335 3 1 #Summary #Python supports a variety of data types. Within a computer, any data can be viewed as an object, and variables are used in prog ...

Posted by jumphopper on Fri, 10 May 2019 12:10:05 +0200

Integration of Django+Django-Celery+Celery

This article is mainly due to the plan to use django to write a planned task, which can rotate the name of the staff on duty or execute scripts on time and other functions. After Baidu has countless pits, it can finally make use of this set of things to deploy. My English is not good, English is good or people who want to learn ...

Posted by tinkertron on Fri, 10 May 2019 11:12:03 +0200

Data Type, Character Coding, File Processing

1. Data type:Digital (Integer, Long Integer, Floating Point, Complex)String: Introducing bytes when introducing character encodingListYuan ZuDictionarySet 2. integer intFunction: Integer numbers such as grade/grade/ID number are correlatedDefinition: age=10. Essentially age=int(10)   The decimal system is converted to... Binary system Print ( ...

Posted by non_zero on Fri, 10 May 2019 10:54:03 +0200