List of videos

Programming paradigms for physical computing and IoT [EuroPython 2018 - Talk - 2018-07-27 - Lammermuir] [Edinburgh, UK] By Ben Nuttall A look at the GPIO Zero library for Raspberry Pi yields the blueprint for a Pythonic API for programming the behaviour of interconnected devices. GPIO Zero provides a multi-paradigm programming interface to GPIO devices: - procedural (polling) - procedural (blocking) - event-driven (callbacks) - declarative Start with simple scripts to control LEDs and buttons on a breadboard, learn to prototype ideas and move on to declaring interaction between more advanced devices in the home and beyond. These options for device programming, along with the extensibility of the library, provide the means to program complex behaviour using simple Pythonic code. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2018.europython.eu/en/speaker-release-agreement/

"Feeding data to AWS Redshift with Airflow [EuroPython 2017 - Talk - 2017-07-13 - Anfiteatro 1] [Rimini, Italy] Airflow is a powerful system to schedule workflows and define them as a collection of interdependent scripts. It is the perfect companion to do extract/transform/load pipelines into data warehouses, such as Redshift. This talk will introduce some of the basis of Airflow and some of the concepts that are data pipeline specific, like backfills, retries, etc. Then there will be some examples on how to integrate this, along with some lessons learned there. At the end, there will be a part dedicated to Redshift, how to structure data there, how to do some basic transformation pre-loading, how to manage the schema using SQLAlchemy and Alembic. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

Lightning Talks [EuroPython 2017 - - 2017-07-14 - Anfiteatro 2] [Rimini, Italy] License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"Lessons learned in X years of parallel programming [EuroPython 2017 - Talk - 2017-07-14 - Anfiteatro 2] [Rimini, Italy] There is a lot more to parallel programming in Python than multiprocessing.Pool().map. In this talk I will share some hard-learned knowledge gained in several years of parallel programming. Covered topics will include performance, ways to measure the performance, memory occupation, data transfer and ways to reduce the data transfer, how to debug parallel programs and useful libraries. I will give some practical examples, both in enterprise programming (importing CSV files in a database) and in scientific programming (numerical simulations). The initial part of the talk will be pedagogical, advocating the convenience of parallel programming in the small (i.e. in single machine environment); the second part will be more advanced and will touch a few things to know when writing parallel programs for medium-sized clusters. I will also briefly discuss the compatibility layer that we have developed at GEM to be independent from the underlying parallelization technology (multiprocessing, concurrent.futures, celery, ipyparallel, grid engine...). License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"I don't like Mondays-what I learned about data engineering after 2 years on call [EuroPython 2017 - Talk - 2017-07-14 - PythonAnywhere Room] [Rimini, Italy] The first weekend of October 2015 my company bought an advert during the first episode of ""Downton Abbey"" on Sunday evening. It was so successful that the website went down for half an hour. We wanted to look at the analytics and the data to estimate the impact. But they were having a very hard weekend too: the replica of the production database we used was unreachable and the only person who knew how to fix it was on a plane. Monday really was a memorable day This session is about sharing some life experience and best practices around Data Engineering. Attendants should have some previous understanding of data and tech in business. Attendants should leave with an understanding of on-call practices and with some quick win actions to take. What does it mean to be on call? How do you make sure that the phone rings as little as possible? Fixing versus Root Cause Analysis. Systems break at junctures. Especially if the juncture is with a third party. Why and when is it worth reacting to errors as soon as they happen? External Services. Increasing Business Trust. Allowing others to build on solid ground. How do you make sure the phone rings when it should? Alerting tools: emails, chat, specialised applications like PagerDuty, OpsGenie and Twilio Monitoring systems Monitoring data (Data Quality) as a continuous early warning system. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"Plone: where is it today and where is it going [EuroPython 2017 - Talk - 2017-07-14 - PyCharm Room] [Rimini, Italy] Plone CMS, first released in 2001, is now close to its 5.1 version. Did you know that the 2016 Olympics web site was built with Plone? Did you know that many huge organizations that care about data protection use Plone? There are good reason why Plone is such a successful Python project, but probably the most important is that Plone does take into account the security of your data very seriously. Nowadays, information and data play a crucial role, sometimes they are the more important asset of a company. They have to be in a digital form and accessible from every device, it is no surprise that they are exposed to a growing threat. During the talk I will review Plone built in security protection systems. In addition I will review some of its features, like the ability to create, without writing a line of code, custom content types, to change documents workflows, to organize your documents in a snap. I will also talk about the foreseen new features that will be soon in Plone and I will present Castle CMS and Quaive, some important projects built on top of Plone that are currently under the spotlight. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"Python and Angular, a perfect match? [EuroPython 2017 - Talk - 2017-07-14 - PyCharm Room] [Rimini, Italy] Python on mobile devices is still negligible mostly because of the GUI problems which arise. But Python on android devices is considered to be a solved problem since the module Python for Android is available. We have nowadays at least the possibility to develop for mobile devices with the GUI engine Kivy which is maybe the first choice for rapid prototyping on that platform. But as it comes to design work and mobile device look alike Kivy is still far behind the web development tools HTML/CSS. In our talk we present a conceptual work where we used Ionic - this is an mobile development framework based on Angular - to build the GUI part of an app and connected that to a Python back end. In our point of view our proposal is very general and will give Python a boost towards modern UX development and makes HTML/CSS/JavaScript a real option especially in combination with Angular. The main part of our solution that we show is the interoperation between JavaScript and Python such that asynchronous calls in both direction are possible. The advantage is to develop UX and back end code only once and use it literally on every platform where a Python interpreter and a browser runs. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"Pythonist view on Microservices & Containerization [EuroPython 2017 - Talk - 2017-07-14 - Arengo] [Rimini, Italy] Microservices architecture and containerization are words thrown around when we talk about designing systems that are loosely coupled, although it may sound like buzz words but these key concepts play a very important part in system as a whole. In this talk, we will cover how microservices can be implemented in python using available open source frameworks and how it can be deployed independently to scale and perform in production environment. I'll also share several use-cases where it is worth planning and developing system architecture considering microservices/containerization and will also discuss some trade-off of having such architecture. Outline: Overview of microservices Implementing microservices using Python Advantages of microservices over Monolithic / SoA architecture Overview of containerization How to containerize Python based services (Docker) Advantages of microservices/containerization over traditional deployment CI/CD Approach in microservices and containerization Usecases where to use microservices Trade-off of using microservices License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/

"Pythonic Refactoring: Protecting Your Users From Change [EuroPython 2017 - Talk - 2017-07-14 - PythonAnywhere Room] [Rimini, Italy] So you've released a library! Now you need to maintain it. You want to add features, restructure the code, fix bugs, and maybe improve the library's usability. Your users just want their code to carry on working. That's okay! This talk will cover techniques in both code and project management to allow you to keep your code moving forwards without breaking your users' code. It is aimed at developers with a little experience of writing libraries in Python, and will cover some intermediate subjects like function decorators and magic methods. Refactoring in Python is a mixed bag - on the one hand you have powerful tools like the @property decorator, __dunder__ methods, and even metaclasses. On the other hand, because Python code has no concept of private or protected like some other languages, it can be difficult to know what your public interface even is. I'll talk about how to identify your public interface, and make that clear to your users. I'll cover how to structure your tests so you know when you've broken your public interface. I'll discuss how to use some of Python's language features to trick your users into thinking your code hasn't changed at all (except for those brilliant new features you've just added!). And finally, I'll cover how you know it's time to break backwards compatibility and how to break it to your users. License: This video is licensed under the CC BY-NC-SA 3.0 license: https://creativecommons.org/licenses/by-nc-sa/3.0/ Please see our speaker release agreement for details: https://ep2017.europython.eu/en/speaker-release-agreement/