Python

Python Alternatives to switch statement from other languages is useful in many cases, especially during programming complex items. Learn more here. Python Alternatives: Use what the language o ers: the if/else construct Well, if you want a switch/case construct, the most straightforward way to go is to use the good old if/else construct: def switch(value):if … Read more

Python List destructuring (aka packing and unpacking) is used for splitting various modules and elements mainly. Here is all you need to know about it. Destructuring assignment In assignments, you can split an Iterable into values using the “unpacking” syntax: Destructuring as values a, b = (1, 2)print(a)Prints: 1 print(b)Prints: 2 If you try to … Read more

A Mixin is a set of properties and methods that can be used in different classes, which don’t come from a base class. Learn More about Python Mixins here. Mixin A Mixin is a set of properties and methods that can be used in different classes, which don’t come from a base class. In Object … Read more

Accessing Python source code and bytecode comes useful in many cases. You can learn to do it easily. Find out more about how to do it here. Display the bytecode of a function The Python interpreter compiles code to bytecode before executing it on the Python’s virtual machine (see also What is python bytecode?. Here’s … Read more

Python Server Sent Events (SSE) is a unidirectional connection between a server and a client (usually a web browser) that allows the server to “push” information to the client. It is much like websockets and long polling. The main difference between SSE and websockets is that SSE is unidirectional, only the server can send info … Read more

Python Logging module defines functions and classes which implement a flexible event logging system for applications and libraries. Introduction to Python Logging Logging in Python module defines functions and classes which implement a flexible event logging system for applications and libraries. The key benefit of having the logging API provided by a standard library module … Read more

Deployment in Python is another essential module which enables programmers in performing a range of tasks. Learn more about it here. Deployment in Python: Uploading a Conda Package Before starting you must have: Anaconda installed on your system Account on Binstar If you are not using Anaconda 1.6+ install the binstar command line client: conda … Read more

Python Web Server Gateway Interface (WSGI) is a start response which initiates the beginning of any process in Python. Learn more about this parameter here. Parameter Details start_response A function used to process the start Python Web Server Gateway Interface: Server Object (Method) Our server object is given an ‘application’ parameter which can be any … Read more

The Input, Subset and Output External Data Files using Pandas in Python can be manipulated in different ways. Learn more about it here. This section shows basic code for reading, sub-setting and writing external data files using pandas. Using Pandas in Python: Basic Code to Import, Subset and Write External Data Files Using Pandas Print … Read more

Working with ZIP archives in Python is essential to import and extract data from bulky files compressed in a single folder. Learn more about it here. ZIP archives in Python: Examining Zipfile Contents There are a few ways to inspect the contents of a zipfile. You can use the printdir to just get a variety … Read more

tempfile NamedTemporaryFile in Python is used to store any object temporarily. Here is all you need to know about creating and using them. param description mode mode to open file, default=w+b delete To delete file on closure, default=True suffix filename suffix, default=” prefix filename prefix, default=’tmp’ dir dirname to place tempfile, default=None buffsize default=-1, (operating … Read more

To extract or uncompress a tarball, ZIP, or gzip file, Python’s tarfile, zipfile, and gzip modules are provided respectively. Learn More about Unzipping Files in Python here. Python’s tarfile module provides the TarFile.extractall(path=”.”, members=None) function for extracting from a tarball file. Python’s zipfile module provides the ZipFile.extractall([path[, members[, pwd]]]) function for extracting or unzipping ZIP … Read more

GZip in Python module provides a simple interface to compress and decompress files just like the GNU programs gzip and gunzip would. The data compression is provided by the zlib module. The gzip module provides the GzipFile class which is modeled after Python’s File Object. The GzipFile class reads and writes gzip-format files, automatically compressing … Read more

A stack in Python is a container of objects that are inserted and removed according to the last-in first-out (LIFO) principle. In the pushdown stacks only two operations are allowed: push the item into the stack, and pop the item out of the stack. A stack is a limited access data structure – elements can … Read more

Working around the Global Interpreter Lock (GIL) in Python is another important thing to learn while programming. Learn more about it here. Working around the Global Interpreter Lock (GIL): Multiprocessing.Pool The simple answer, when asking how to use threads in Python is: “Don’t. Use processes, instead.” The multiprocessing module lets you create processes with similar … Read more

Python HTTP Server creation and understanding is an integral part of learning python programming. Here is everything you need to know about it. Running a simple Python HTTP Server Python 2.x Version ≥ 2.3 python -m SimpleHTTPServer 9000 Python 3.x Version ≥ 3.0 python -m http.server 9000 Running this command serves the files of the … Read more

Python Networking lets you share files or create simple websites along with multiple other functions. Learn more about this important module here. Python Networking: Creating a Simple Http Server To share files or to host simple websites(http and javascript) in your local network, you can use Python’s builtin SimpleHTTPServer module. Python should be in your … Read more

Flask in Python is a micro web framework used to run major websites including Pinterest, Twilio, and LinkedIn. This topic explains and demonstrates the variety of features Flask offers for both front and back end web development. Flask in Python: Files and Templates Instead of typing our HTML markup into the return statements, we can … Read more

Introduction to RabbitMQ using AMQPStorm Python in important to understand the various aspects of this topic. Learn more here. RabbitMQ using AMQPStorm Python: How to consume messages from RabbitMQ Start with importing the library. from amqpstorm import Connection When consuming messages, we first need to define a function to handle the incoming messages. This can … Read more

Descriptor in Python have two types and both of them help in defining different elements. You can easily learn about this module through this guide. Simple descriptor There are two different types of descriptors. Data descriptors are defined as objects that define both a get() and a set() method, whereas non-data descriptors only define a … Read more