Python

SciPy Recipes. A cookbook with over 110 proven recipes for performing mathematical and scientific computations

Luiz Felipe Martins, Ke Wu, Ruben Oliva...

With the SciPy Stack, you get the power to effectively process, manipulate, and visualize your data using the popular Python language. Utilizing SciPy correctly can sometimes be a very tricky proposition. This book provides the right techniques so you can use SciPy to perform different data science tasks with ease.This book includes hands-on recipes for using the different components of the SciPy Stack such as NumPy, SciPy, matplotlib, and pandas, among others. You will use these libraries to solve real-world problems in linear algebra, numerical analysis, data visualization, and much more. The recipes included in the book will ensure you get a practical understanding not only of how a particular feature in SciPy Stack works, but also of its application to real-world problems. The independent nature of the recipes also ensure that you can pick up any one and learn about a particular feature of SciPy without reading through the other recipes, thus making the book a very handy and useful guide.

Secret Recipes of the Python Ninja. Over 70 recipes that uncover powerful programming tactics in Python

Cody Jackson

This book covers the unexplored secrets of Python, delve into its depths, and uncover its mysteries.You’ll unearth secrets related to the implementation of the standard library, by looking at how modules actually work. You’ll understand the implementation of collections, decimals, and fraction modules. If you haven’t used decorators, coroutines, and generator functions much before, as you make your way through the recipes, you’ll learn what you’ve been missing out on. We’ll cover internal special methods in detail, so you understand what they are and how they can be used to improve the engineering decisions you make. Next, you’ll explore the CPython interpreter, which is a treasure trove of secret hacks that not many programmers are aware of. We’ll take you through the depths of the PyPy project, where you’ll come across several exciting ways that you can improve speed and concurrency. Finally, we’ll take time to explore the PEPs of the latest versions to discover some interesting hacks.

Serverless Analytics with Amazon Athena. Query structured, unstructured, or semi-structured data in seconds without setting up any infrastructure

Anthony Virtuoso, Mert Turkay Hocanin , Aaron...

Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using SQL, without needing to manage any infrastructure.This book begins with an overview of the serverless analytics experience offered by Athena and teaches you how to build and tune an S3 Data Lake using Athena, including how to structure your tables using open-source file formats like Parquet. You’ll learn how to build, secure, and connect to a data lake with Athena and Lake Formation. Next, you’ll cover key tasks such as ad hoc data analysis, working with ETL pipelines, monitoring and alerting KPI breaches using CloudWatch Metrics, running customizable connectors with AWS Lambda, and more. Moving on, you’ll work through easy integrations, troubleshooting and tuning common Athena issues, and the most common reasons for query failure. You will also review tips to help diagnose and correct failing queries in your pursuit of operational excellence. Finally, you’ll explore advanced concepts such as Athena Query Federation and Athena ML to generate powerful insights without needing to touch a single server.By the end of this book, you’ll be able to build and use a data lake with Amazon Athena to add data-driven features to your app and perform the kind of ad hoc data analysis that often precedes many of today’s ML modeling exercises.

Skrypty powłoki systemu Linux. Zagadnienia zaawansowane. Wydanie II

Mokhtar Ebrahim, Andrew Mallett

Mimo że nowe wydania dystrybucji Linuksa są coraz łatwiejsze w obsłudze, a ważniejsze czynności administracyjne mogą być wykonywane za pomocą intuicyjnego interfejsu graficznego, wciąż nie można się obejść bez powłoki Bourne'a, znanej jako bash. Dobrze napisany skrypt powłoki pozwala na automatyzację nudnych obowiązków, umożliwia monitorowanie stanu systemu, optymalizację jego wydajności czy dostosowanie go do potrzeb. Warto też wypróbować ciekawą alternatywę dla tradycyjnych skryptów powłoki bash, czyli kod Pythona. Dzięki tej książce nauczysz się wszystkiego, co jest potrzebne do pisania profesjonalnych skryptów powłoki. Dowiesz się, czym są powłoki systemu Linux, dlaczego tak ważna jest powłoka bash i w jaki sposób edytuje się skrypty. Nauczysz się pracy na zmiennych, debugowania kodu i tworzenia skryptów interaktywnych. Będziesz korzystać z instrukcji warunkowych i pętli, a także z edytora vim, pakietu Visual Studio Code oraz edytora strumieniowego sed. Zapoznasz się z zasadami pisania funkcji, dzięki którym będziesz mógł wielokrotnie używać uniwersalnych fragmentów kodu. Ponadto zdobędziesz umiejętność przetwarzania danych tekstowych, zarówno za pomocą polecenia AWK, jak i wyrażeń regularnych. Na koniec przekonasz się, jak ciekawą alternatywą dla skryptów powłoki bash jest kod napisany w Pythonie! W tej książce między innymi: wyczerpujące wprowadzenie do tworzenia i debugowania skryptów powłoki składnia alternatywna i operacje arytmetyczne praca z blokami kodu i korzystanie z funkcji automatyzacja tworzenia hostów wirtualnych zaawansowane korzystanie z polecenia AWK skrypty do analizy plików dziennika i tworzenia raportów Opanuj sztukę pisania doskonałych skryptów powłoki!

Snowflake Cookbook. Techniques for building modern cloud data warehousing solutions

Hamid Mahmood Qureshi, Hammad Sharif

Snowflake is a unique cloud-based data warehousing platform built from scratch to perform data management on the cloud. This book introduces you to Snowflake's unique architecture, which places it at the forefront of cloud data warehouses.You'll explore the compute model available with Snowflake, and find out how Snowflake allows extensive scaling through the virtual warehouses. You will then learn how to configure a virtual warehouse for optimizing cost and performance. Moving on, you'll get to grips with the data ecosystem and discover how Snowflake integrates with other technologies for staging and loading data.As you progress through the chapters, you will leverage Snowflake's capabilities to process a series of SQL statements using tasks to build data pipelines and find out how you can create modern data solutions and pipelines designed to provide high performance and scalability. You will also get to grips with creating role hierarchies, adding custom roles, and setting default roles for users before covering advanced topics such as data sharing, cloning, and performance optimization.By the end of this Snowflake book, you will be well-versed in Snowflake's architecture for building modern analytical solutions and understand best practices for solving commonly faced problems using practical recipes.

Software Architecture with Python. Design and architect highly scalable, robust, clean, and high performance applications in Python

Anand Balachandran Pillai

This book starts by explaining how Python fits into an application's architecture. As you move along, you will get to grips with architecturally significant demands and how to determine them. Later, you’ll gain a complete understanding of the different architectural quality requirements for building a product that satisfies business needs, such as maintainability/reusability, testability, scalability, performance, usability, and security.You will also use various techniques such as incorporating DevOps, continuous integration, and more to make your application robust. You will discover when and when not to use object orientation in your applications, and design scalable applications.The focus is on building the business logic based on the business process documentation, and understanding which frameworks to use and when to use them. The book also covers some important patterns that should be taken into account while solving design problems, as well as those in relatively new domains such as the Cloud.By the end of this book, you will have understood the ins and outs of Python so that you can make critical design decisions that not just live up to but also surpassyour clients’ expectations.

Speed Up Your Python with Rust. Optimize Python performance by creating Python pip modules in Rust with PyO3

Maxwell Flitton

Python has made software development easier, but it falls short in several areas including memory management that lead to poor performance and security. Rust, on the other hand, provides memory safety without using a garbage collector, which means that with its low memory footprint, you can build high-performant and secure apps relatively easily. However, rewriting everything in Rust can be expensive and risky as there might not be package support in Rust for the problem being solved. This is where Python bindings and pip come in.This book will help you, as a Python developer, to start using Rust in your Python projects without having to manage a separate Rust server or application. Seeing as you'll already understand concepts like functions and loops, this book covers the quirks of Rust such as memory management to code Rust in a productive and structured manner. You'll explore the PyO3 crate to fuse Rust code with Python, learn how to package your fused Rust code in a pip package, and then deploy a Python Flask application in Docker that uses a private Rust pip module. Finally, you'll get to grips with advanced Rust binding topics such as inspecting Python objects and modules in Rust.By the end of this Rust book, you'll be able to develop safe and high-performant applications with better concurrency support.

Sphinx Search Beginner's Guide. Implement full-text search with lightning speed and accuracy using Sphinx

Abbas Ali

This book is a step-by-step guide for an absolute beginner. It covers everything, from installing to configuring, to get you started quickly. It has numerous code examples that the reader can try on their own and learn while doing so. It has two full-fledged applications as examples that readers can follow. This book is specifically focused on the Search feature of web applications. This book is for developers who are new to Sphinx Search. All code examples use PHP but the logic is same for any other web scripting languages as well.