most useful python modules

Python to build APNS related modules of the apple push notification PUSH Service User Guide, pythonapns APNS is a Push service provided by Apple for IOS devices ). You should be familiar with mobile Internet-related development. Next, I will give you a brief introduction to some APNS related modules in Python and their

One: moduleA module is a py file, which defines some business functions. Reference modules, which can be imported using Import statements. After the module is imported, the function in the module is used by the module. Function name (parameter) . If there are multiple modules with the same name, the previous module name needs to be added to the package path.If we only need to import several functions in the

1 #Remember that you cannot have the same name as the method function, or you will get an error! 2 3 #Python's modules and packages are divided into three types:4 #1. Standard library5 #2. Third-party modules6 #3. Custom Modules7 8 #the introduction of the Python Module principle:9 #join you create a module, after the import module, Python will interpret the cont

First, the moduleA module is a file that contains the Python definition and reputation, and the filename is the module name plus the. py suffix.Import loaded modules are divided into four general categories:1. Code written using Python (. py file)2. C or C + + extensions that have been compiled as shared libraries or DLLs3. Package a set of modules4. Built-in

The "project directory Structure" is also a category of "readability and maintainability".How directory is organizedThere are already some common directory structures for how to organize a better Python project directory structure. On this issue of StackOverflow, we can see the discussion of the Python directory structure.This is already very good, I do not intend to rebuild the wheel to enumerate the diffe

scientific notation), and format it to a specified position (if the scientific count is e;)-%, when there is a format flag in the string, you need to use the Percent percent represents a semicolon Note: There is no way to automatically convert an integer to a binary representation in Python with a percent-semicolon formatPractice:TPL = "I am%s"% "Alex" Print (TPL) TPL = "I am%s age%d"% ("Alex", page) print (TPL) TPL = "I am% (name)" s age% (age) d "

└── ... 4 directories, SI files Tools for packaging and installing third-party packages Here we need to use tools such as Setuptools and Pip to package and publish and install our own packages, and to install wheel modules if needed to build wheel. If Python version >=2.7.9 or >=3.4,setuptools and Pip are already installed, you may need to update to the latest version Pip install-u Pip Setuptools You can

) return F (A, b) return new_f return decorator# get square sum@pre_str (' hello ') def square_sum (A, b): return a**2 + b**2The pre_str above is an adorner that allows parameters. It is actually a function encapsulation of the original adorner and returns an adorner. We can interpret it as a closure with environmental parameters.When we call with @pre_str (' hello '), Python can discover this layer of encapsulation and pass pa

　　　　　C language Programming experience of friends know that in C language if you want to reference sqrt this function, you must use the phrase "#include I. INTRODUCTION of ModulesUsing the keyword import in Python to introduce a module, such as referencing module math, can be introduced with import math at the very beginning of the file. When you call a function in the math module, you must refer to this:Module name. function nameWhy do I have to add

=" Screenshot from 2017-09-07 15-37-12.png "alt=" Wkiol1mw9zdwwjm3aaaol8wyvis405.png "/>4. Three days before the current time650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M02/A4/C2/wKioL1mw94TCZInnAAAvwtgn2oQ657.png "title=" Screenshot from 2017-09-07 15-38-34.png "alt=" Wkiol1mw94tczinnaaavwtgn2oq657.png "/>5. Get the start and end times of the day (00:00:00 23:59:59)650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M00/06/12/wKiom1mw-DXRHJgbAABVmJO1_q8461.png "title=" Screensho

(' Root/python/123/file2 '), results:20, Os.path.join (path,name): Connection directory and file name or directory21, Os.path.basename (PATH): Return file name, such as '/etc/passwd ', will print out passwd. If '/root/python ', Python is a folder that will print out python. The following 22 features are the same.22. O

Timedatetime module of common python modulesIn the usual code, we often have to deal with time. In Python, the modules related to time processing include: times and DateTime, as described below:Before you begin, there are several ways to represent the time: 1. Time stamp 2. Formatted time string (Time object) 3. Tuples (struct_time) a tot

Transfer from http://www.cnblogs.com/BeginMan/p/3183656.htmlFirst, the basis of the module1. ModuleSelf-contained, organized code snippets are modules A module is the Pyhon highest-level program organizational unit that encapsulates program code and data for reuse. In practical terms, modules often correspond to Python program files.Each file is a module

View modules under 1.Windows or Linux console1) PIP listThis command looks at the third-party module that is installed in Python.2) Pip freezeThis command belongs to the old version of Python.3) Pydoc ModulesThis command looks at all the modules, including the built-in modules