best python packages

First, the functionTo define a function:def Fun_name (para_list): codingdef fun_name (para_list): Coding return XXXUsing functions, Fun_name (para)Local variables, global variables are the same as C, local variables inside functions, files visible, global variables.Second, the moduleThe module is a collection of functions, first imported and then used, import time Time.asctime ()Three, the packagePackage: Contains multiple modules from the PIL import image to import an image module from

To get all installed package: Mode one: 1. Select Tools-Run manage.py task 2. Typing command shell Mode two: 1. Select Tools--Start SSH session--Select the project corresponding to the vagrant 2. (Python-django) vagrant@precise64:~$ cd/vagrant/ 3. (python-django) vagrant@precise64:/vagrant$ python manage.py Shell Import pip Installed_packages = Pip.get_in

650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/8B/4A/wKiom1hI9_vzpqDtAACr4_NspUc852.png-wh_500x0-wm_3 -wmp_4-s_815730094.png "title=" 1.png "alt=" Wkiom1hi9_vzpqdtaacr4_nspuc852.png-wh_50 "/>The setting settings under File---->650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M02/8B/46/wKioL1hI9lGS1VwVAADEHlEKCQk352.png-wh_500x0-wm_3 -wmp_4-s_3493833253.png "title=" 2.png "alt=" Wkiol1hi9lgs1vwvaadehlekcqk352.png-wh_50 "/>Project Interperter below project interpreter----->650) t

Import module:Print ('from thespam.py')money =read1 def (): print ( ' Spam->read1->money ',+) def read2 (): print ('spam->read2 calling Read ' ) read1 () def change (): Global money money =0spam.pyCall spam.pyMoney = 9999999ImportSpam#From the spam.py#first thing: Create a namespace to hold the name defined in the spam.py#second thing: Execute spam.py based on the namespace you just created#The third thing: Create a name spam point to the namespace, spam. The operation of the nam

\python2.7\scriptsInstalling virtualenv-2.7-script.py script to D:\Program files\python2.7\scripts Installing Virtualenv-2.7.exe script to D:\Program files\python2.7\scriptsInstalling Virtualenv-2.7.exe.manifest script to D:\Program FILES\PYTHON2.7\SCRIPtsUsing D:\Program Files\python2.7\lib\site-packages\virtualenv-1.7.2-py2.7.eggProcessing dependencies for VirtualenvFinished processing dependencies for virtualenv Install NumPy Easy_install NumPy

First, install the XLRD Address After downloading, use the pip install .whl installation as well. View Help: >>> Import xlrd>>> Help (XLRD) to the Xlrd:name xlrdpackage CONTENTS biffh book CompDoc Formatt ING Formula Info licences sheet TimeMachine xldate xlsxfunctions count_records (filename, outfile= The above method can be used to view the XLRD help information, there are some modules in the XLRD package, as well as some member variables, constants, functions. Second,

XML to JSON? Is it hard to hear the pain, are the format of structured data necessary for this conversion? Yes, actually I also feel bored, but hands itch, always want to try. Online can also find a conversion tool called xmltodict, also very useful. My method is as follows, the principle is very simple, the code is also very short.XML file: Testxml.xmlPython code:From Xml.etree import ElementTree as Et;import json# reads the node from the XML file into JSON format and saves it to the file print

Gmpy2 need gmp.h mpfr.h mpc.h installation command: sudo apt-get install livmpfr-dev libmpc-devAfter successful, enter the installation command:pip install gmpy2If you encounter a package that cannot be located:Then enter the command: sudo gedit/etc/apt/sources.listPop up the file and add it at the end of the file:Deb http://Mirrors.ustc.edu.cn/kali kali-rolling main Non-free contribThen sudo apt-get update canInstallation of Python's Gmpy2 library under Linux and solutions to the inability to l

Binary installation file Download address: https://www.lfd.uci.edu/~gohlke/pythonlibs/ Problem: Pip installation error, XXXX is not a supported wheel on this platform Possible cause 1: installed not corresponding to the Python version of the library, the downloaded library name CP27 representative python2.7, others the same. Possible reason 2: This is the situation I have encountered (download the corresponding version of the library, and then still p

package three-step explanation"7, http://www.cnblogs.com/einyboy/archive/2012/09/13/2683015.html "Explain installation src.rpm"8, https://yq.aliyun.com/articles/43220 "How to make the source package into RPM package" later wrote a new blog post9, http://www.gkstk.com/article/wk-78500000726568.html "Linux software package management basic Operations Command get Started"10, http://studys.blog.51cto.com/9736817/1608958 "must See, software warehouse explanation"11, Http://os.51cto.com/art/201109/29

package, meta-package and frameworkThis article is translated from Packages, Metapackages and Frameworks. . Net Core is a platform made up of NuGet Packages. Some product experiences benefit from fine-grained definitions of code packages, while others benefit from coarse-grained definitions, both of which are useful and cannot be absolutely good or bad. therefore

Let's briefly describe the problem. I use the Ubuntu, source code compiled to install the Python3. I install some libraries that need to be installed by Apt-get, and this time I encounter problems with Python not finding these libraries.There is a simple article to look at: http://www.cnblogs.com/kevin922/p/3161411.html. It is said that some of the tools installed by the system, including the original Python