Python

It says Nginx and lighthttpd are high-performance Web servers, and tornado is a well-known high-load application, what are the similarities between them? How do the Ioloop objects mentioned in the previous section loop? Look down.The first section

Working mechanism of tornado in TCP layerThe previous section is about protocol HTTP for the application layer, which relies on the Transport layer protocol TCP, such as how the server binds the port? When was the HTTP server's handle_stream called?

1. Color definition Descriptionformat: \033[display mode; foreground color; background colour m Foreground background color---------------------------------------30 40 Black31 41 Red32 42 Green33 43 Yellow34 44 Blue35 45 Purplish red36 46 Cyan Blue37

>>>Import UUIDPrint Uuid.uuid3 (UUID.UUID1 (), ' python.org ') >>># Make a UUID based on the host ID and current time>>>uuid.uuid1 () uuid ('a8098c1a-f86e-11da-bd1a-00112444be1e')>>> # Make a UUIDusingAn MD5 hash of anamespaceUUID and a name>>> uuid.

#!/usr/bin/env python "" "file name: opt_wc.py" ""  import osimport sysfrom  Optparse import optionparser def opt ():    parser =  Optionparser ()      parser.add_option ("-C",  "--chars",                        dest =  "Chars",                      

#!/usr/bin/env python "" "file name: opt_wc.py" ""  import osimport sysfrom  Optparse import optionparser def opt ():    parser =  Optionparser ()      parser.add_option ("-C",  "--chars",                        dest =  "Chars",                      

Mind Mapping "Annotations"1. Control flow Statements　　1.1 Article statement [execute code block according to condition]1.1.1 If statement1.1.2 Else Statement1.1.3 ElseIf Statements[DEMO] (When conditions are large, note the order of the conditions)　　

Debug is an important debugging technique for coding, which helps developers understand the running process better by setting breakpoints during operation.Debug in Python is not as intuitive as setting breakpoints in the IDE like Java or C + +.There

Life was short, just use Python.Since the 08 touch python, there is a feeling of love, gradually, some can not bear to alienate the Perl and shell programming, because of the elegance of Python? Not all, the main is to effectively develop it.What do

There is a openwrt router, 16M Flash storage + 64M memory, can be installed Python. Because there is no URL to the site access records, want to write one.Principle:HTTP 1.1 is a TCP connection with header and bodyUsing Python Listen 8000 portSetting

Conversion of Python 2.7 to Python 3.X under UbuntuSince Ubuntu itself comes with Python 2.7, and Python 3.X is a lot different from 2.7, there are many inconveniences when using Python 3.X. So here's the record under UbuntuPython 2.7 Conversion

> Python contains 3 types of numeric values: integers, floating-point numbers, and complex numbers.IntegerIntegers are represented in Python in four ways, binary, octal, decimal, hexadecimal. Humans use decimal for the representation of numeric

The previous article learned about Python's object-oriented 3 features, encapsulation, inheritance, and polymorphism, which continues to learn about class members, including fields, methods, properties, and their modifiers.1. FieldsFields are

Python commonly used operators are: arithmetic operators, logical operators, comparison operators, respectively, described below.1. Arithmetic operator+ addition operator-Subtraction operator* Multiplication operator/Division operator (Precise

Learn Excel Read-write, convert an Excel file content to dict for subsequent processing, write dict to Excel#coding = ' Utf-8 'Import TimeImportXlrd,xlsxwriterstart=Time.clock ()defread_excel (file):"""read in Excel file: Rtype:object:p Aram File::

Python inherits that subclasses can override various methods of the parent class, including the __init__ method.If you want to overwrite the __init__ method of the parent class, and you want to refer to the __init__ method of the parent class in the

Beginner Python (eight)--iterationBeginner Python, mainly finishing some of the learning points, this is an iteration.#-*-coding:utf-8-*- fromCollectionsImportiterable" "' Iteration" "L= ['af','St',' at','Psst','Beta'] D= {1:'af', 2:'St', 3:' at', 4:

Build the python + PyCharm environment using the API, and use pythonpycharm 1.Configure Python Environment Variables A: My computer> Properties> advanced system Settings> environment variables> PATH variables in system variables. Variable name: PATH

Python simple time formatting method [strftime function], pythonstrftime This article describes the Python simple time formatting method and shares it with you for your reference. The details are as follows: Walker often uses the current time and

Python custom master-slave distributed architecture instance analysis and python instance analysis This example describes the Python custom master-slave distributed architecture. We will share this with you for your reference. The details are as