most useful python modules

Object ret = shutil.make_archive (' My_proj_bak ', ' Gztar ', root_dir= ' my_proj ')　　Shutil Processing of compressed packets is done by calling the ZipFile and Tarfile two modules, in detail:ZipFile Compression DecompressionImport Zipfilez = ZipFile. ZipFile (' Log.zip ', ' W ') z.write (' F1.log ') z.write (' F2.log ') z.close ()　　z = zipfile. ZipFile (' Log.zip ', ' R ') Z.extractall (path= '. ') Z.close ()　　Tarfile Compression Decompr

There are a lot of places to use random characters, such as login site random verification code, through the random module can easily generate random stringImport Randomprint (Random.randrange (1, ten)) # Returns a random number between 1-10, excluding 10print (Random.randint (1, ten)) # Returns a random number between 1-10, including 10print (Random.randrange (0, 2)) # randomly selects even print (random.random) # between 1 and 100 to return the random floating-point print ( Ra

, Tm_isdst=-1)Print(fansik.tm_year) execution results:2017ImportdatetimePrint(Datetime.datetime.now ()) Implementation results:2017-10-16 18:27:03.256569Random moduleImportRandomPrint(Random.random ())#random number from 0 to 1:0.06054267487515341Print(Random.randint (1, 9999))#random numbers from 1 to 9999, including 1 and 9999Print(Random.randrange (1, 9999))#random number from 1 to 9999, not including 9999Print(Random.choice ('Fansik'))#a character in a random FansikPrint(Random.choice (['Fan

intermediate state of the python converter. When you input this module from another program next time, The. PyC file is very useful-it will be much faster, because the processing required by some input modules has been completed. In addition, the files compiled by these bytes are not related to the platform. So now you know what the. PyC files actually are. Fr

Use modules in Python and python Python itself has many built-in very useful modules, which can be used immediately after installation. The built-in sys module is used as an example to compile a hello module: #!/usr/bin/env

developed by John Ousterhout. Tcl (tool command language) is a macro language used to simplify the development of complex programs in shell. Tk Toolkit is developed with Tcl to simplify the design process of user interfaces. The Tk toolkit consists of many different widgets, such as a button and a scroll bar. With these widgets provided by Tk, we can quickly launch a GUI. Perl, Scheme, and other languages also use the Tk library for GUI development. Tkinter is cross-platform and can be used on

This chapter is the last part of the series of serialization from C # To python. It is simple to introduce how to use modules and packages in Python. If you are familiar with this part of the content, do not waste any time reading it. Write this chapter to complete the entire series, there is nothing new (This chapter mainly refers to Chapter 8 "

The module provides a convenient way to share Python code between programs. Python provides a library of hundreds of modules that you can invoke in your footsteps or create your own modules.This chapter describesInternal mechanism of the research moduleCreate a module that contains only functionsDefining classes in a moduleExtending classes through subclassesDefi

Basic knowledge about modules in Python and basic knowledge about python A module can logically organize Python code. Add the relevant code to a module to make the code easier to understand and use. A module is a Python object that can be bound to or referenced from any name

Python's advanced Application (ii) Common module learningKey points to learn in this chapter: Definition of Python module Time datetime Module Random module OS Module SYS module Shutil Module Configparser Module Shelve module XML processing Re-regular expression I. Definition of the Python moduleC language Programming experience of friends know that in C lan

Tutorial on using third-party modules in Python, python third-party In Python, third-party modules are installed through the setuptools tool. Python has two package management tools that encapsulate setuptools: easy_install and pi

python programs contain multiple module files, one main, top-level file implementation of the main control process, calling components and tools, other module files provide components and tools, Python comes with a lot of useful modules called standard link library. modules

Python functionsA function can be thought of as a function in mathematics, a piece of code that accomplishes a particular function.-Absolute function abs ()-Types function type ()-Rounding function round ()There are many built-in functions in Python, that is, functions that do not require additional import.-CMP (), str (), and type () apply to all standard types. The following are numerical built-in functio

C # calls Python scripts and third party modules using Python C Call Python script and use Python third party module to add Reference library C code embedded python load Python code fr

modules in Pythonis a python file that ends with a. Py, contains Python object definitions and Python statements, and allows you to logically organize your Python code snippets. Assigning the relevant code to a module will make your code better and easier to understand.

This article and everyone to share is mainly python in the package and module-related content, come together to see it, hope to learn Python to help you.Summary1. For reuse and better maintenance of code, Python uses modules and packages; a python file is a module that is a

Use Python to compile the basic modules and framework Usage Guide for crawlers, and use guide for python Basic modulePython crawler, web spider. Crawls the website to obtain webpage data and analyzes and extracts the data. The basic module uses urllib, urllib2, re, and other modules. Basic usage, for example: (1) Perfo

in thePythonDevelopment (http://www.maiziedu.com/course/python-px/) using the Keyword import to introduce a module, It is similar to the include header file in C + + . For example, to reference the module math, you can use import math to introduce itat the very beginning of the file . when you call a function in the math module, you must refer to this , see the code for details:>>>improt Math>>> Math . Sin (0)To import your own

Python is a commonly used language in computer languages and you may be familiar with it. And "Working Together" with it. Do you know the solutions of common Python modules in practical application? And which modules are frequently used in Python. If you want to know about i

1. Module Import methodCommon scenarios:A module is a file containing python definitions and declarations, and the filename is the suffix of the module name plus the. Py , and the import module allows for the reuse of the function.Import loaded modules are divided into four general categories:1 code written using python (. py file)2 c or C + + extensions that hav