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Working with System Frameworks in Python and Objective-C
Working with System Frameworks in Python and Objective-C by James Barclay Feedback :) j.mp/psumac2015-62 2 Dude, Where’s My Source Code? CODE https://github.com/futureimperfect/psu-pyobjc-demo https://github.com/futureimperfect/PSUDemo SLIDES https://github.com/futureimperfect/slides 3 Dude, Where’s My Source Code? CODE https://github.com/futureimperfect/psu-pyobjc-demo https://github.com/futureimperfect/PSUDemo SLIDES https://github.com/futureimperfect/slides 3 Dude, Where’s My Source Code? CODE https://github.com/futureimperfect/psu-pyobjc-demo https://github.com/futureimperfect/PSUDemo SLIDES https://github.com/futureimperfect/slides 3 Agenda 1. What are system frameworks, and why should you care? 2. Brief overview of the frameworks, classes, and APIs that will be demonstrated. 3. Demo 1: PyObjC 4. Demo 2: Objective-C 5. Wrap up and questions. 4 What’s a System Framework? …and why should you care? (OS X) system frameworks provide interfaces you need to write software for the Mac. Many of these are useful for Mac admins creating: • scripts • GUI applications • command-line tools Learning about system frameworks will teach you more about OS X, which will probably make you a better admin. 5 Frameworks, Classes, and APIs oh my! Cocoa CoreFoundation • Foundation • CFPreferences - NSFileManager CoreGraphics - NSTask • Quartz - NSURLSession - NSUserDefaults • AppKit - NSApplication 6 CoreFoundation CoreFoundation is a C framework that knows about Objective-C objects. Some parts of CoreFoundation are written in Objective-C. • Other parts are written in C. CoreFoundation uses the CF class prefix, and it provides CFString, CFDictionary, CFPreferences, and the like. Some Objective-C objects are really CF types behind the scenes. -
Macspeechx.Py MODULE and ITS USE in an ACCELERATOR CONTROL SYSTEM Noboru Yamamoto*, J-PARC Cener, KEK and JAEA, Ibaraki, JAPAN
Proceedings of ICALEPCS2013, San Francisco, CA, USA TUPPC109 MacspeechX.py MODULE AND ITS USE IN AN ACCELERATOR CONTROL SYSTEM Noboru Yamamoto*, J-PARC cener, KEK and JAEA, Ibaraki, JAPAN Abstract With additional functionality such as user interface or macspeechX.py[1] is a Python module to accels speech selection of voices for specified UDP ports, this program synthesis library on MacOSX. This module have been can fit one or two pages of the paper used in the vocal alert system in KEKB[2] and J- While this system running without serious problem PARC[3] accelerator control system. Recent upgrade of until MacOSX came to the market. In Python on this module allow us to handle non-English lanugage, MacOSX does not includes macspeech.py as a its such as Japanese, through this module. Implementation components. It means we need to develop our own detail will be presented as an example of Python program solution before old Mac hardware would be replaced by accessing system library. new hardware which just runs MacOSX. SPEECH SYNTHESIS IN CONTROL In the next section, we will see several ways to write SYSTEMS Python module which bridges C/C++ library. In some control system, alerts to the operators can be sent as vocal messages. It used be require the special hardware or software to generate vocal message from computers in the system. When we started commissioning of KEKB accelerator, such an alert system was requested. We picked up: • speech synthesis library includes as one of standard libraries on Macintosh OS from Apple. • Macspeech.py module distributed as one of standard module with Python programming Langauge Figure 1: Software overview of KEKB/J-PARC vocal With these two components, we could build a very low alert system. -
Python for the C# Developer
{SDD} 2014 Software Design & Development Python for the C# developer Michael Kennedy @mkennedy http://blog.michaelckennedy.net Objectives • Introduce the basics of the Python language • Review what is awesome about C# and .NET • Explore Python's version of each C# / .NET feature DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net What is Python? • High-level programming language • Interpreted (sometimes JIT compiled) • Object-oriented (especially Python 3) • Strongly-typed with dynamic semantics • Syntax emphasizes readability • Supports modules and packages • Batteries included (large standard library [1]) DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net The ‘shape’ of a Python program • Python defines code blocks (known as suites in Python) using whitespace and colons. Things to note: def somemethod(name): • No semicolons if name == "Michael": print("Hi old friend") • Code blocks start with ‘:’ else: • Whitespace really really matters print("Nice to meet you") • There are no braces print("My name is … ") • There are no parentheses • Tabs are not your friend def main(): somemethod() Code suites DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net Python language demo DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net What's awesome about C# and .NET? System.Object: Everything is an object. LINQ IEnumerable + foreach loops Visual Studio / IDEs Class properties ( int Age {get; set;} ) Side-by-side execution (isolation) Anonymous types Iterator methods / yield return -
Practical Ruby Projects: Practical Ruby Projects Ideas for the Eclectic Programmer
CYAN YELLOW MAGENTA BLACK PANTONE 123 C BOOKS FOR PROFESSIONALS BY PROFESSIONALS® THE EXPERT’S VOICE® IN OPEN SOURCE Companion eBook Available Practical Ruby Projects: Projects Ruby Practical Ideas for the Eclectic Programmer Dear Reader, You’ve learned the basics of Ruby, and you’re ready to move on to the next level— trying out advanced techniques, mastering best practices, and exploring Ruby’s full potential. With this book you’ll learn by experience while you tackle an exciting series of varied but always practical programming projects. What is an eclectic programmer, you ask? He or she is an inquisitive thinker Practical who likes to play around with new concepts, a person who is project-oriented and enjoys coding, a person who doesn’t mind some technical depth folded in with creative excursions, and a person who is always looking for fresh ideas. This book is a little different from other computer books. It is meant to be entertaining, exciting, and intellectually challenging. Inside you’ll find a collec- tion of diverse projects, ranging from the creative to the practical, written as a nod to all the great Rubyists I’ve been privileged to know. Each chapter dives into Ruby Projects new topics and approaches meant to exercise your programming muscles. You’ll start by building a cross-platform music environment, progress to drawing animations using scalable vector graphics, and then move on to prac- tical problem solving using simulation. In addition, you’ll implement your own turn-based strategy game and build a Mac-native RubyCocoa interface to it. -
Cross-Platform Mobile Software Development with React Native Pages and Ap- Pendix Pages 27 + 0
Cross-platform mobile software development with React Native Janne Warén Bachelor’s thesis Degree Programme in ICT 2016 Abstract 9.10.2016 Author Janne Warén Degree programme Business Information Technology Thesis title Number of Cross-platform mobile software development with React Native pages and ap- pendix pages 27 + 0 The purpose of this study was to give an understanding of what React Native is and how it can be used to develop a cross-platform mobile application. The study explains the idea and key features of React Native based on source literature. The key features covered are the Virtual DOM, components, JSX, props and state. I found out that React Native is easy to get started with, and that it’s well-suited for a web programmer. It makes the development process for mobile programming a lot easier com- pared to traditional native approach, it’s easy to see why it has gained popularity fast. However, React Native still a new technology under rapid development, and to fully under- stand what’s happening it would be good to have some knowledge of JavaScript and per- haps React (for the Web) before jumping into React Native. Keywords React Native, Mobile application development, React, JavaScript, API Table of contents 1 Introduction ..................................................................................................................... 1 1.1 Goals and restrictions ............................................................................................. 1 1.2 Definitions and abbreviations ................................................................................ -
Internationalization in Ruby 2.4
Internationalization in Ruby 2.4 http://www.sw.it.aoyama.ac.jp/2016/pub/IUC40-Ruby2.4/ 40th Internationalization and Unicode Conference Santa Clara, California, U.S.A., November 3, 2016 Martin J. DÜRST [email protected] Aoyama Gakuin University © 2016 Martin J. Dürst, Aoyama Gakuin University Abstract Ruby is a purely object-oriented scripting language which is easy to learn for beginners and highly appreciated by experts for its productivity and depth. This presentation discusses the progress of adding internationalization functionality to Ruby for the version 2.4 release expected towards the end of 2016. One focus of the talk will be the currently ongoing implementation of locale-aware case conversion. Since Ruby 1.9, Ruby has a pervasive if somewhat unique framework for character encoding, allowing different applications to choose different internationalization models. In practice, Ruby is most often and most conveniently used with UTF-8. Support for internationalization facilities beyond character encoding has been available via various external libraries. As a result, applications may use conflicting and confusing ways to invoke internationalization functionality. To use case conversion as an example, up to version 2.3, Ruby comes with built-in methods for upcasing and downcasing strings, but these only work on ASCII. Our implementation extends this to the whole Unicode range for version 2.4, and efficiently reuses data already available for case-sensitive matching in regular expressions. We study the interface of internationalization functions/methods in a wide range of programming languages and Ruby libraries. Based on this study, we propose to extend the current built-in Ruby methods, e.g. -
Rapid GUI Development with Qtruby
Rapid GUI Development with QtRuby Caleb Tennis The Pragmatic Bookshelf Raleigh, North Carolina Dallas, Texas BOOKLEET © Many of the designations used by manufacturers and sellers to distin- guish their products are claimed as trademarks. Where those designations appear in this book, and The Pragmatic Programmers, LLC was aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals. The Pragmatic Starter Kit, The Pragmatic Pro- grammer, Pragmatic Programming, Pragmatic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC. Qt® is a registered trademark of Trolltech in Norway, the United States and other countries. Useful Friday Links • Source code from this book and Every precaution was taken in the preparation of this book. However, the other resources. publisher assumes no responsibility for errors or omissions, or for dam- • Free updates to this PDF • Errata and suggestions. To report ages that may result from the use of information (including program list- an erratum on a page, click the ings) contained herein. link in the footer. To see what we’re up to, please visit us at http://www.pragmaticprogrammer.com Copyright © 2006 The Pragmatic Programmers LLC. All rights reserved. This PDF publication is intended for the personal use of the individual whose name appears at the bottom of each page. This publication may not be disseminated to others by any means without the prior consent of the publisher. In particular, the publication must not be made available on the Internet (via a web server, file sharing network, or any other means). -
Bleak Documentation Release 0.12.1
bleak Documentation Release 0.12.1 Henrik Blidh Jul 07, 2021 Contents 1 Features 3 1.1 Installation................................................3 1.2 Scan/Discover..............................................4 1.3 Usage...................................................6 1.4 Bleak backends..............................................6 1.5 Interfaces, exceptions and utils......................................8 1.6 Troubleshooting............................................. 24 1.7 Contributing............................................... 28 1.8 Credits.................................................. 29 1.9 Changelog................................................ 30 2 Indices and tables 43 Python Module Index 45 Index 47 i ii bleak Documentation, Release 0.12.1 Bleak is an acronym for Bluetooth Low Energy platform Agnostic Klient. • Free software: MIT license • Documentation: https://bleak.readthedocs.io. Bleak is a GATT client software, capable of connecting to BLE devices acting as GATT servers. It is designed to provide a asynchronous, cross-platform Python API to connect and communicate with e.g. sensors. Contents 1 bleak Documentation, Release 0.12.1 2 Contents CHAPTER 1 Features • Supports Windows 10, version 16299 (Fall Creators Update) or greater • Supports Linux distributions with BlueZ >= 5.43 (See Linux backend for more details) • OS X/macOS support via Core Bluetooth API, from at least OS X version 10.11 Bleak supports reading, writing and getting notifications from GATT servers, as well as a function for discovering BLE devices. Contents: 1.1 Installation 1.1.1 Stable release To install bleak, run this command in your terminal: $ pip install bleak This is the preferred method to install bleak, as it will always install the most recent stable release. If you don’t have pip installed, this Python installation guide can guide you through the process. 1.1.2 From sources The sources for bleak can be downloaded from the Github repo. -
Python Guide Documentation 0.0.1
Python Guide Documentation 0.0.1 Kenneth Reitz 2015 09 13 Contents 1 Getting Started 3 1.1 Picking an Interpreter..........................................3 1.2 Installing Python on Mac OS X.....................................5 1.3 Installing Python on Windows......................................6 1.4 Installing Python on Linux........................................7 2 Writing Great Code 9 2.1 Structuring Your Project.........................................9 2.2 Code Style................................................ 15 2.3 Reading Great Code........................................... 24 2.4 Documentation.............................................. 24 2.5 Testing Your Code............................................ 26 2.6 Common Gotchas............................................ 30 2.7 Choosing a License............................................ 33 3 Scenario Guide 35 3.1 Network Applications.......................................... 35 3.2 Web Applications............................................ 36 3.3 HTML Scraping............................................. 41 3.4 Command Line Applications....................................... 42 3.5 GUI Applications............................................. 43 3.6 Databases................................................. 45 3.7 Networking................................................ 45 3.8 Systems Administration......................................... 46 3.9 Continuous Integration.......................................... 49 3.10 Speed.................................................. -
Debugging at Full Speed
Debugging at Full Speed Chris Seaton Michael L. Van De Vanter Michael Haupt Oracle Labs Oracle Labs Oracle Labs University of Manchester michael.van.de.vanter [email protected] [email protected] @oracle.com ABSTRACT Ruby; D.3.4 [Programming Languages]: Processors| Debugging support for highly optimized execution environ- run-time environments, interpreters ments is notoriously difficult to implement. The Truffle/- Graal platform for implementing dynamic languages offers General Terms an opportunity to resolve the apparent trade-off between Design, Performance, Languages debugging and high performance. Truffle/Graal-implemented languages are expressed as ab- Keywords stract syntax tree (AST) interpreters. They enjoy competi- tive performance through platform support for type special- Truffle, deoptimization, virtual machines ization, partial evaluation, and dynamic optimization/deop- timization. A prototype debugger for Ruby, implemented 1. INTRODUCTION on this platform, demonstrates that basic debugging services Although debugging and code optimization are both es- can be implemented with modest effort and without signifi- sential to software development, their underlying technolo- cant impact on program performance. Prototyped function- gies typically conflict. Deploying them together usually de- ality includes breakpoints, both simple and conditional, at mands compromise in one or more of the following areas: lines and at local variable assignments. The debugger interacts with running programs by insert- • Performance: Static compilers -
Shaunak Vairagare Shaunakv1
[email protected] Shaunak Vairagare shaunakv1 GIS Web Developer 832-603-9023 1000 Bonieta Harrold Dr #12106 Charleston SC 29414 Innovative software engineer offering eight plus years of experience in Web development and GIS involving full software development lifecycle – from concept through delivery of next- generation applications and customizable solutions. Expert in advanced development methodologies tools and processes. Strong OOP and Design Patterns skills. Deep understanding of OOAD and Agile software development. Creative problem solver and experience in designing software work-flows for complex Geo- spatial applications on web, desktop and mobile platforms. Technical Skills Front End HTML 5, CSS 3, JavaScript, Angular, D3 GIS Servers GeoServer, ArcGIS Server Front End Tools Yeoman, Grunt, Bower Map API OpenLayers, Leaflet, TileMill, Google Maps, BingMaps Web Development Node.js, Ruby on Rails, Spring ESRI ArcGIS Rest, Image Services DevOps Capistrano, Puppet, AWS Stack, Heroku OGC WMS, WFS, GeoJSON, GML, KML, GeoRSS Database MongoDB, MySQL, PostgreSQL, SQL Server GIS Tools ArcGIS, FME, GDAL, LibLAS, Java Topology Suite Servers Apache2, Phusion Passenger, Tomcat GIS Data LiDAR, GeoTIFF, LAS, ShapeFile, GDF Mobile Web PhoneGap , jQuery Mobile, Sencha Touch Carto Databases PostgreSQL/PostGIS , SQL Server Spatial Mobile Native iOS, RubyMotion Data Formats Tele Atlas, NavTeq, Lead Dog, Map My India Languages Ruby, Node.js, Python, Java, ObjectiveC Process & Tools JIRA, Jenkins, Bamboo Work Experience (8+ years) -
Specialising Dynamic Techniques for Implementing the Ruby Programming Language
SPECIALISING DYNAMIC TECHNIQUES FOR IMPLEMENTING THE RUBY PROGRAMMING LANGUAGE A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy in the Faculty of Engineering and Physical Sciences 2015 By Chris Seaton School of Computer Science This published copy of the thesis contains a couple of minor typographical corrections from the version deposited in the University of Manchester Library. [email protected] chrisseaton.com/phd 2 Contents List of Listings7 List of Tables9 List of Figures 11 Abstract 15 Declaration 17 Copyright 19 Acknowledgements 21 1 Introduction 23 1.1 Dynamic Programming Languages.................. 23 1.2 Idiomatic Ruby............................ 25 1.3 Research Questions.......................... 27 1.4 Implementation Work......................... 27 1.5 Contributions............................. 28 1.6 Publications.............................. 29 1.7 Thesis Structure............................ 31 2 Characteristics of Dynamic Languages 35 2.1 Ruby.................................. 35 2.2 Ruby on Rails............................. 36 2.3 Case Study: Idiomatic Ruby..................... 37 2.4 Summary............................... 49 3 3 Implementation of Dynamic Languages 51 3.1 Foundational Techniques....................... 51 3.2 Applied Techniques.......................... 59 3.3 Implementations of Ruby....................... 65 3.4 Parallelism and Concurrency..................... 72 3.5 Summary............................... 73 4 Evaluation Methodology 75 4.1 Evaluation Philosophy