Python 3 Functions A function is a structured, reusable piece of code that performs a single or related function. Functions increase the modularity of your application and the reusability of your code. You already know that Python provides many built-in…
Python 3 XML Parsing What is XML? XML stands for Extensible Markup Language (eXtensible Markup Language), a subset of Standard Generalized Markup Language (SGML). It is a markup language used to structure electronic documents. You can learn XML tutorials on…
Python 3 Data Structures This chapter introduces Python data structures, combining previously learned knowledge. Lists Lists in Python are mutable, their most important feature that distinguishes them from strings and tuples. In short, lists can be modified, while strings and…
Python 3 OS File/Directory Methods os provides a rich set of methods for working with files and directories. Commonly used methods are shown in the following table: Number Method and Description 1 os.access(path, mode) Verify the permission mode 2 os.chdir(path)…
Introduction to Python 3 Python is a high-level scripting language that combines interpretation, compilation, interactivity, and object-oriented functionality. Python is designed for readability. Unlike other languages, which often use English keywords and some punctuation, it has a more distinctive syntax…
Python 3 Interpreter On Linux/Unix systems, the default Python version is typically 2.x. We can install Python 3.x in the /usr/local/python3 directory. After installation, add the path /usr/local/python3/bin to your Linux/Unix operating system’s environment variables. Then, you can start Python…
Python 3 Multithreading Multithreading is similar to executing multiple programs simultaneously. Multithreading has the following advantages: Using threads, you can offload long-running program tasks to the background. The user interface can be more appealing. For example, when a user clicks…
Python 3 Tuples Python Tuples are similar to lists, except that tuple elements cannot be modified. Tuples use parentheses, while lists use square brackets. Creating a tuple is simple: simply add elements within the parentheses and separate them with commas.…
Python MongoDB MongoDB is one of the most popular NoSQL databases. For more information on MongoDB database installation and introduction, please refer to our MongoDB Tutorial. PyMongo Python Connecting to MongoDB requires a MongoDB driver. Here, we use the PyMongo…
Python 3 Lists Sequences are the most basic data structure in Python. Each element in a sequence is assigned a number—its position, or index. The first index is 0, the second is 1, and so on. Python has six built-in…