4. Python Control Flow

4-1.python Control FlowThere are three types of control flows:1, sequential structure, 2, branching structure, (IF) 3, cyclic structure; (while,for)4-2. Branch structure IFformat:If this is the case: Execute this part of the statement elif: Execute

Python version issue, cause ansible prompt error

[Email protected] ~]# ansible mongodb-m copy-a "Src=/etc/yum.repos.d/mongodb-org-3.2.repo dest=/etc/yum.repos.d/"SSH Password:10.8.21.9 | Success >> {"Changed": false,"Checksum": "41B65EDF420E087A9F8C66993338251F87008FBA","Dest":

Python custom web framework, JINJA2

WSGI (Web server Gateway Interface) is a specification that defines the interface format between Web apps and Web servers written in Python, enabling decoupling between Web apps and Web servers.The standalone WSGI server provided by the Python

"Python" programming language Introduction Classic 100 cases--37

1 #题目: Sort 10 numbersCode:  2 i = 1  3 li = []  4 while i   li[i]: 17                  m = li[i] 18           liorder.append (m)  19         li.remove (m)   20     else: 21         x =  1 22 print (' sorted after: ')  23 print (Liorder)Operation

Configure the Python development environment under MAC

? ~sudoBrewInstallPython3==> Downloading https://Www.python.org/ftp/python/3.5.1/Python-3.5.1.tar.xzAlready downloaded:/library/caches/homebrew/python3-3.5.1.Tar. XZ==> Downloading https://Bugs.python.org/file40478/xcode-stubs.diffAlready downloaded:

Python collection (set) types of operations

Python's set is similar to other languages and is an unordered set of distinct elements, with basic functionality including relationship testing and de-duplication elements. The collection object also supports mathematical operations such as Union

Understanding the python naming mechanism

Understanding the python naming mechanismThis article was originally published in the blog (http://blog.csdn.net/lanphaday) of flower butterflies, and is welcome to be reproduced, but must be retained and not used for commercial purposes. Thank

Python implements RPC via PROTOBUF

Since the RPC used by the project group is based on the Google protobuf RPC protocol, it took some time to understand the protobuf RPC. RPC for the people who do distributed system is certainly not strange, for RPC do not know the children's shoes

"Python" programming language Introduction Classic 100 cases--19

1 #题目: If a number is exactly equal to the sum of its factors, this number is called the "end number". For example, 6=1+2+3. Programming to find all the finished numbers within 1000.Code:2 3 for I in Range (1,1001): 4 s = 0 5 for j in Range (1,i): 6

The way of Python (11)-socke Development

About socketSockets are also commonly referred to as "sockets," which describe IP addresses and ports, and are a handle to a chain of communication, where applications usually make requests to the network through "sockets" or respond to network

python--Class Code writing details

Class Code writing detailsContinue learning classes, methods, and inheritance.================================================================================Class statementThe following is the general form of the class statement:Class (superclass,.

Four arithmetic operations 2, 3.2 arithmetic operations of the plural number

Four arithmetic operations 2, 3.2 arithmetic operations of the plural number # Writher gu peng # edit date 20160312 from fractions import Fraction # score from random import randint # random number def layer (layer_accual, operat_number2, brackets2,

Class (sixth day), python study notes, etc.

Class (sixth day), python study notes, etc.   Reference: 1, Kingdom blog: http://www.cnblogs.com/alex3714/articles/5188179.html 2, silver horn King blog: http://www.cnblogs.com/wupeiqi/articles/5017742.html   1. Reflection of _ import __: We know

Python implements the class Object conversion to json/dictionary method, pythonjson

Python implements the class Object conversion to json/dictionary method, pythonjson This example describes how to convert a class object to a json dictionary in python. We will share this with you for your reference. The details are as

Introduction to the ImageFont module of Python image processing library PIL

Introduction to the ImageFont module of Python image processing library PIL The ImageFont module defines classes with the same name, that is, the ImageFont class. Instances of this class store bitmap fonts for the text () method of the ImageDraw

How to install and use binwalk windows

How to install and use binwalk windows Binwalk is a file analysis tool designed to assist researchers in file analysis, extraction and reverse engineering. Simple and easy to use, fully automated scripts, and Extraction Rules and plug-in modules

Summary of common python small modules and python Module

Summary of common python small modules and python Module   Some easy-to-use small modules are often used during code writing. Here we will summarize them: 1. Obtain the current file name and directory name and add it to the system environment

Differences between EXT4 and ext3ext4 migration

Differences between EXT4 and ext3ext4 migration Http://fanli7.net/a/JAVAbiancheng/ANT/20101003/43604.html Others: Moderate Roderick W. Smith, analyst and writer June 02, 2008 Is Ext4 a multi-region Linux? The latest version in the file system, which

Python tutorial 10-Python anonymous Functions

Python tutorial 10-Python anonymous Functions When you pass in a function, you do not need to explicitly define the function. It is more convenient to directly pass in an anonymous function. In Python, anonymous functions are provided with limited

Python and JavaScript code conversion tools, pythonjavascript

Python and JavaScript code conversion tools, pythonjavascript Select Python or JavaScript? Although many friends are still arguing about who is more powerful and who has a brighter development prospects, there is no doubt that the competition

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