Programs often need to look for, read, and write specific files in a special location. By convention, and with support from the operating system, programs maintain a current working directory used as the context for many of their files.
Many applications use temporary files to hold intermediate results in their execution. A program, for example, may process several gigabytes of data in multiple passes because trying to hold it all in memory can exceed the ability of the system, even with a large swap store.
Pythons sets are unordered collections modeled on mathematical sets, in which elements are unique. Python sets support the logical operations of mathematical sets, like union, intersection, and difference.
Variables are what make programs capable of meaningful action and complexity. Understandably, you want to know how they work for any language you are working with.
Stacks are convenient data structures, collecting items in a last-in-first-out order like you see with many activity histories.
Knowing about Python’s data types helps to make your Python programs more effective, and helps you to avoid errors.
Python is one of the most popular programming languages due to its ease of use and a large selection of built-in features.
Most of the time, using Unicode characters in Python does not require extra effort. However, sometimes encoding and decoding do not work properly, which results in errors.
Lua and Python are often mentioned as good choices for embedded scripting languages. Both are interpreted, dynamically typed programming languages implemented in C.
Python reigns as one of the most popular programming languages, with a wide range of programs and developer tools relying on it.
The Markdown markup language is a good choice for text formatting. Unfortunately, the Markdown syntax does not align with HTML conventions.
Python arrays provide an effective way to store multiple values of the same type in a single variable.
In Python, queues are frequently used to process items using a first in first out (FIFO) strategy.
Python is a dynamically typed language, so programmers might not always consider the type of each variable they create.
During string interpolation a string literal is evaluated and if any placeholders are present, they are substituted by the indicated variable values.
Python supports several common string operations, like slicing, indexing, searching, and advanced formatting. However, it lacks a dedicated, built-in method for reversing strings.
A dictionary in Python is much like the dictionary you find online or the paper version you find on a shelf.
Python is currently one of the world’s most popular programming languages. It achieved this position due to its powerful features, flexibility, and ease of use.
A tuple is a built-in Python data structure that stores multiple comma-separated values. Tuples are an immutable sequence type that can store values of any data type.
Boolean logic is at the heart of Python and most programming languages. It allows programmers to make comparisons, execute conditional statements, and implement common algorithms.
Programs often have to run the same commands over and over again. Python provides two types of loop statements to handle two different situations.
Python programs must be able to run different branches of code in different situations. This is usually accomplished through the use of conditional statements, which determine the control flow through a program.
Except for very short and simple programs, most Python applications contain code from many files, directories, and packages.
Python has become one of the world’s most popular programming languages due to its intuitive and straightforward nature.
Python is a dynamically typed language. It determines data types at run time, rather than compile time.
The Python unittest library helps you test your application code for errors in an automated way.
Artificial Intelligence (AI), the appearance or simulation of human intelligence within a machine, is popular today because it can solve a huge number of problems within specific categories using well-known algorithms.
Web development began as a process for structuring static content using HTML to make it easier to exchange.
This guide shows you how to install PyTorch, a Python framework, on an Ubuntu 20.04 Linode.
Bokeh is an interactive visualization library that focuses on browser output. This guide introduces you to Bokeh with example code that creates line and bar graphs.
Flask is a Python micro-framework for building web applications and web APIs. The framework provides pared-down core functionality, however, it is highly extensible.
This guide provides an introduction to popular Python testing frameworks used to unit test software. Unit tests are automated tests that target and test specific areas of your code, like specific functions or methods.
Python includes many built-in methods and operations that help you manipulate lists. This guide shows you how to use the append(), insert(), and remove() built-in list methods.
When your Python program needs to run an external password-dependent program, or access a remote server, use Paramiko.
FastAPI automatically generates an OpenAPI schema that can be accessed by your API’s users. The documentation generated by the OpenAPI schema helps users learn about your API’s features.
gRPC is an open-source remote procedure call (RPC) framework that enables cross-platform and cross-language communication between clients and a central server.
Python 3.9: New FeaturesPython 3.9.5 is the latest major release and contains several new features.
Python is one of the most popular programming languages in the world because it provides a vast array of packages, it’s easy to learn, and it’s incredibly flexible.
Python was developed in the late 1980s, released in 1991, and is an interpreted, high-level and general-purpose programming language that emphasizes code readability.
What is Pylint?Pylint is a code analysis tool to identify errors in Python source code.
FastAPI is a high-performance Python micro-framework designed to help developers build APIs quickly. Out-of-the-box, it generates interactive API documentation powered by the Swagger UI.
As one of the most popular programming languages, the Python ecosystem offers a variety of frameworks to help you build a web API.
FastAPI FeaturesFastAPI is a modern Python micro-framework with all the functionality to support production applications.
Python is a popular programming language created in 2000, by Guido van Rossum. It’s useful for writing everything from small scripts to full-scale software.
Python is a programming language with a large library of third party modules, or packages. Python developers rely on third party packages to simplify problems when they are writing code.
What is a Python Virtual Environment?A Python virtual environment is an isolated project space on your system that contains its own Python executable, packages, and modules.
Geographic Information system (GIS) based applications require a beautiful mapping experience for users. Stadia Maps provides digital mapping that you can easily and affordably integrate into your web or mobile applications.
Flask is a light-weight web framework for Python that includes several utilities and libraries you can use to create a web application.
What is Pipenv?Pipenv is Python’s officially recommended package management tool. It combines the functionality of Pip and Virtualenv, along with the best features of packaging tools from other languages such as Bundler and NPM.
Strings in PythonStrings are one of the most basic data types in Python, used to represent textual data.
What is PySpark?Apache Spark is a big-data processing engine with several advantages over MapReduce. Spark offers greater simplicity by removing much of the boilerplate code seen in Hadoop.
File system monitoring through inotify can be interfaced through Python using pyinotify. This guide will demonstrate how to use a Python script to monitor a directory then explore practical uses by incorporating async modules or running additional threads.
Scrapy is a Python framework for creating web scraping applications. It provides a programming interface to crawl the web by identifying new links, and extracts structured data from the downloaded content.
Celery is a Python Task-Queue system that handle distribution of tasks on workers across threads or network nodes.
What is a Python Virtual Environment?A Python Virtual Environment - or virtualenv - is a tool to create an isolated Python environment on your Linode.
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