For the most part, it’s difficult to crown just one language as the supreme leader of standard use in the development world. There isn’t a language that takes the cake, though there are developers that certainly prefer one or more over the others. Growth is not surprising to see anymore ...
Python 2.2 saw the introduction of a built-in function called “super,” which returns a proxy object to delegate method calls to a class – which can be either parent or sibling in nature. That description may not make sense unless you have experience working with Python, so we’ll break it ...
According to the official Python documentation, __repr__ is a built-in function used to compute the "official" string reputation of an object, while __str__ is a built-in function that computes the "informal" string representations of an object. So both __repr__ and __str__ are used to represent objects, but in different ways. ...
The del statement can be used to remove an item from a list by referring to its index, rather than its value. For example, if you have a list with five values, like this: a = [1, 2, 3, 4, 5] and you want to remove the second listed value ...
Break statements exist in Python to exit or "break" a for or while conditional loop. When the loop ends, the code picks up from and executes the next line immediately following the loop that was broken. numbers = (1, 2, 3) num_sum = 0 count = 0 for x in ...
In any OOP language, there are many different data types. In Python, number data types are used to store numeric values. There are four different numerical types in Python: int (plain integers): this one is pretty standard -- plain integers are just positive or negative whole numbers. long (long integers): ...
The sockets module provides an easy way to look up a host name's ip address. import socket addr1 = socket.gethostbyname('google.com') addr2 = socket.gethostbyname('yahoo.com') print(addr1, addr2) Which will output the following ip addresses: 173.194.121.9 98.138.253.109
Python comes pre-equipped with a JSON encoder and decoder to make it very simple to play nice with JSON in your applications The simplest way to encode JSON is with a dictionary. This basic dictionary holds random values of various datatypes. data = { a: 0, b: 9.6, c: "Hello ...
MySQL Connector/Python is a driver released by Oracle themselves to make it easier to connect to a MySQL database with Python. MySQL Connecter/Python supports all versions of Python 2.0 and later, also including versions 3.3 and later. To install MySQL Connector/Python simply use pip to install the package. pip install ...
An Apache logfile can be huge and hard to read. Here is a way to get a list of the most visited pages (or files) from an Apache logfile. In this example, we only want to know the URLs from GET requests. We will use the wonderful Counter which is ...
