best python packages

Python to install numpy, scipy, matplotlib and other whl packages, numpyscipy Python and PyCharm development environments have been installed recently, but problems have occurred when installing numpy, matplotlib, and other packages. Here we will summarize the installation methods on the windows platform. Because the n

function, the entry parameter of a function is a functionTwo, setA collection is also a data type, similar to a list, which is characterized by unordered, non-repeating, meaning that there is no duplicate data in the collectionFunction of the collection:1, it can be a list of duplicate data removed, and do not need you to write judgment2, can do relationship testing, for example, there are two classes, a performance test class, one is the interface test class, want to find out both the performa

= wb.active#print (sheet_obj)## Rename the current worksheet#sheet_obj.title = "Mysheet"#Add Table | The added table is already active#sheet_obj1 = Wb.create_sheet (' Ursheet ')#print (SHEET_OBJ1)#Delete a table#...## Write data to the table#sheet_obj1[' B2 ' = "Hello World"#For I in Range (Ten):#sheet_obj1["a%d"% (i+1)].value = i+1 # Adds data to the specified number of rows in column A## Functions in Excel can be manipulated in Python with a string

了__init__.py文件的文件夹（可以往这个文件夹放一堆模块）在python3中，即使包下没有__init__.py文件，import 包仍然不会报错，而在python2中，包下一定要有该文件，否则import 包报错创建包的目的不是为了运行，而是被导入使用，记住，包只是模块的一种形式而已，包的本质就是一种模块2, why to use the package包的本质就是一个文件夹，那么文件夹唯一的功能就是将文件组织起来随着功能越写越多，我们无法将所以功能都放到一个文件中，于是我们使用模块去组织功能，而随着模块越来越多，我们就需要用文件夹将模块文件组织起来，以此来提高程序的结构性和可维护性3. Precautions#1.关于包相关的导入语句也分为import和from ... import ...两种，但是无论哪种，无论在什么位置，在导入时都必须遵循一个原则：凡是在导入时带点的，点的左边都必须是一个包，否则非法。可以带有一连串的点，如item.subitem.subsubitem,但都必须遵循这个原则。但对于导入后，在使用时就没有这种限制了，点的左边可以是包,模块，函数，类(它们

RHEL6 Installing Python Packages tornadoTornado is a full-stack (full-stack) Web framework and asynchronous network library developed using Python, originally developed by FriendFeed. By using non-blocking io,tornado, you can handle tens of thousands of open connections, which are long polling, websockets, and others that need to be used to maintain long-connecte

Open Blog has long, think of a long time decided to write a basic installation tutorial, hope posterity less detours, also take this hope to communicate with you a lot. The link given in this article is based on the package on the premise of python2.7.1. First download the 64-bit Python package for installation (default python2.7.6)Download Link: https://www.baidu.com/link?url=i1EA542Pi-dNF0hi9veKLT6dDlsur0X0n3H81kEOUxwwlnbNvyRiwu8jP_ e9bwi5ajuqdk1isr

Python: Installing a third-party package with setup.py packagesOriginal December 10, 2016 15:17:56 Label: Python 8531 This time to introduce the Python third-party package installation, described in 3 ways, we introduce a way this time. See the links below for the first two ways.Pip Installhttp://blog.csdn.net/xxzhangx/article/de

Recent study of QQ space, micro-bo (reptile) Simulation login, found that all involved in RSA algorithm. The next RSA package (third-party package) is required. Toss for a long time, mainly feel online a lot of articles on the specific where to write the operation is not clear. Here's a summary, lest you forget it someday.The first method (do not use PIP or Easy_install):STEP1: Find the required package on the Internet and download it down. eg. Rsa-3.1.4.tar.gzSTEP2: Unzip the file.STEP3: comman

The default PIP is to use the official Python source, but because the foreign official source is often the wall, resulting in unavailability, we can use the domestic Python image source, to solve the problem of Python installation not on the library.There are many sources available online, for example: Watercress: http://pypi.douban.com/simple/Tsinghua: Https://p

Module and Package *****************************First, the moduleIn Python, a. py file is called a module.? greatly improve the maintainability of the Code;? Writing code does not have to start from scratch. When a module is written, it can be referenced elsewhere;Classification:1). built-in modules :2). third-party modules(Unofficial, relatively good open source module, URL: pypi.python.org, the pip install module name at the time of installation)3).

need toUse these options in case of a3. Reading instructions from the. pyc file at a speed is no faster than reading instructions from a. py file, and the. pyc file is faster when the module is loaded.4. Only use the import statement to automatically compile files into. pyc files, specifying run scripts on the command line or standard input does not generate such files, so we can use the Compieall module to create. pyc files for all modules in a directoryPackageUsed to organize the module funct

the concept of modules and packages in Python Table of Contents 1 Modules (module) and Packages (Package) 1.1 Namespaces (Namespace) 1.2 Modules (module) 1.3 Packs (Package)1 Modules (module) and Packages (Package) 1.1 Namespaces (Namespace) Because everything in Python is

"), Class Ftpclienttest ( UnitTest. TestCase): def setUp (self): Self.start_time=time.time () print "starting\n", Def test_login (SE LF): Ftp=ftpclient () ftp.connect ("192.168.23.117") ftp.login ("root", "root") self.assertequals ( Ftp.getreplycode (), Def test_files_list (self): #这里之所以又一次登录ftpserver, the results of the preceding case are not reused. is to maintain the independence of each case and ensure that it does not #由于前面case的原因影响后继的測试 file_existing=false ftp=ftpclient () ftp.connect ("19

into a packageThe package here is the aggregation of modules, wrapped in the same folder.Four, otherSome students notice two different kinds of grammar when quoting.__author__ ' Bruce ' from Import darkred Import Humans if __name__ ' __main__ ' : = darkred () dark_red.printinfo () PassIf you look at the subdivision point, you will see: From Color.Red, the general from behind is directly followed by the inclusion of the upper space, and import can only follow a level of space.Reprint

1. YamlDownload the corresponding version of EXE from Http://pyyaml.org/wiki/PyYAML and install it directly.2. PipDownload the corresponding version of the compressed package from Https://pypi.python.org/pypi/pip#downloads and unzip it.Open the command line under the decompression path, runPython setup.py InstallFinally, the path C:\Python27\Scripts (depending on your Python installation path), add the environment variable. Test method:3. Numpy,scipy,

definition x=10def func (): print (' from api.__init.py ') __all__=[' x ', ' func ', ' policy ']At this point we are in the glance of the files in the same class to execute from GLANCE.API import * To import the contents of the __all__ (versions still cannot import).1.3 Absolute Import and relative importOur top package glance is for others to use, and then within the glance package will also have each other to import each other needs, this time there are absolute import and relative import

List installed Packagespip freezeor pip list Export Requirements.txtpip freeze > installation package Online Installationpip install or pip install -r requirements.txt Specify the version by using = = >= The Requirements.txt content format is:Apscheduler==2.1.2django==1.5. 4mysql-connector-python==2.0. 1mysql-python==1.2. 3pil==1.1. 7south==1.0. 2django-grappelli==2.6. 3django-pagination==1.0. 7

" Run results, will appear fengzi111, because import test2, "test2.py" was executed once.Why can't I print the fengzi222?"test2.py" is introduced into the "test1.py". In "test2.py" there is the if judgment, the result of judgment: they are two not the same name.Look at the code print (test2.__name__) in the "test1.py" file, which deliberately shows what the name "test2.py" is. The result returned is test2, but now the "test1.py" file is executed! "Test1" = = "Test2"? Obviously false, then there

Module: is the. py file, which defines functions and variables that can be imported when neededPackage: A concept on a module that packages files for ease of administration. The first article in the package directoryIs __init__.py, then some module files and subdirectories, if there are __init__.py in subdirectoriesThen it's the package's child bag.Common Package Structure:package_a├──__init__.py├──module_a1.py└──module_a2.pyLibrary: A collection of r

ImportPrint (' Frrom the my_module.py ')money=1000Def rend1 ():Print (' My_my_module->reand1->money ', money)Def rend2 ():Print (' My_module->read2 calling Read1)Read1 ()def change ():Global moneyMoney=0A module can contain definitions of executable statements and functions that are intended to initialize the moduleOnly the first time the module name is encountered importing import statements is performed(Import statements can be used anywhere in the program, and for the same yigemodule and impo