Summary
Developers hate wasting effort on manual processes when we can write code to do it instead. Cog is a tool to manage the work of automating the creation of text inside another file by executing arbitrary Python code. In this episode Ned Batchelder shares the story of why he created Cog in the first place, some of the interesting ways that he uses it in his daily work, and the unique challenges of maintaining a project with a small audience and a well defined scope.
Announcements

Hello and welcome to Podcast.__init__, the podcast about Python’s role in data and science.
When you’re ready to launch your next app or want to try a project you hear about on the show, you’ll need somewhere to deploy it, so take a look at our friends over at Linode. With the launch of their managed Kubernetes platform it’s easy to get started with the next generation of deployment and scaling, powered by the battle tested Linode platform, including simple pricing, node balancers, 40Gbit networking, dedicated CPU and GPU instances, and worldwide data centers. Go to pythonpodcast.com/linode and get a $100 credit to try out a Kubernetes cluster of your own. And don’t forget to thank them for their continued support of this show!
Your host as usual is Tobias Macey and today I’m interviewing Ned Batchelder about Cog, a tool for generating files or text from embedded Python logic

Interview

Introductions
How did you get introduced to Python?
Can you describe what Cog is and the story behind it?
What are the use cases that you initially created Cog to address?
What were the shortcomings or extraneous overhead that you encountered in tools such as Jinja, Mako, Genshi, etc. that led you to create a new tool?
What was your path from a quick and dirty script that suited your own purposes to turning it into a niche open source project that was general and stable enough for the broader community?
One of your claims to fame is your role as the maintainer for coverage.py. How has your experience managing such a widely used project translated to the relatively small and low traffic project like Cog?
Can you describe how Cog is implemented?

How did you approach the design of the syntactic elements for embedding Python code into a host file?


What is the workflow for someone using Cog to generate all or parts of a file?

How does the introduction of third party dependencies impact the viability and utility of Cog as compared to other templating systems?


What are the most interesting, innovative, or unexpected ways that you have seen Cog used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on Cog?
When is Cog the wrong choice?
What do you have planned for the future of Cog?

Keep In Touch

Website
nedbat on GitHub
@nedbat on Twitter
LinkedIn

Picks

Tobias

Samson Q9U Microphone


Ned

McFly Command Line History Tool
Go for a walk



Closing Announcements

Thank you for listening! Don’t forget to check out our other show, the Data Engineering Podcast for the latest on modern data management.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@podcastinit.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

Cog
Boston Python
Lotus
Lotus Notes
Zope
Cheetah Template Engine
Coverage.py

Podcast Episode


Unix Philosophy
Hungarian Notation
Jupyter Notebooks
GitHub Profile ReadMe
Ned’s GitHub Profile

Raw Markdown



The intro and outro music is from Requiem for a Fish The Freak Fandango Orchestra  / CC BY-SA




Generate Your Text Files With Python Using Cog

The podcast about Python and the people who make it great

Technology

Tech News

Podcasting

Gadgets

Software How-To

Preamble
This is a cross-over episode from our new show The Machine Learning Podcast, the show about going from idea to production with machine learning.
Summary
The majority of machine learning projects that you read about or work on are built around batch processes. The model is trained, and then validated, and then deployed, with each step being a discrete and isolated task. Unfortunately, the real world is rarely static, leading to concept drift and model failures. River is a framework for building streaming machine learning projects that can constantly adapt to new information. In this episode Max Halford explains how the project works, why you might (or might not) want to consider streaming ML, and how to get started building with River.
Announcements

Hello and welcome to the Machine Learning Podcast, the podcast about machine learning and how to bring it from idea to delivery.
Building good ML models is hard, but testing them properly is even harder. At Deepchecks, they built an open-source testing framework that follows best practices, ensuring that your models behave as expected. Get started quickly using their built-in library of checks for testing and validating your model’s behavior and performance, and extend it to meet your specific needs as your model evolves. Accelerate your machine learning projects by building trust in your models and automating the testing that you used to do manually. Go to themachinelearningpodcast.com/deepchecks today to get started!
Your host is Tobias Macey and today I’m interviewing Max Halford about River, a Python toolkit for streaming and online machine learning

Interview

Introduction
How did you get involved in machine learning?
Can you describe what River is and the story behind it?
What is "online" machine learning?

What are the practical differences with batch ML?
Why is batch learning so predominant?
What are the cases where someone would want/need to use online or streaming ML?


The prevailing pattern for batch ML model lifecycles is to train, deploy, monitor, repeat. What does the ongoing maintenance for a streaming ML model look like?

Concept drift is typically due to a discrepancy between the data used to train a model and the actual data being observed. How does the use of online learning affect the incidence of drift?


Can you describe how the River framework is implemented?

How have the design and goals of the project changed since you started working on it?


How do the internal representations of the model differ from batch learning to allow for incremental updates to the model state?
In the documentation you note the use of Python dictionaries for state management and the flexibility offered by that choice. What are the benefits and potential pitfalls of that decision?
Can you describe the process of using River to design, implement, and validate a streaming ML model?

What are the operational requirements for deploying and serving the model once it has been developed?


What are some of the challenges that users of River might run into if they are coming from a batch learning background?
What are the most interesting, innovative, or unexpected ways that you have seen River used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on River?
When is River the wrong choice?
What do you have planned for the future of River?

Contact Info

Email
@halford_max on Twitter
MaxHalford on GitHub

Parting Question

From your perspective, what is the biggest barrier to adoption of machine learning today?

Closing Announcements

Thank you for listening! Don’t forget to check out our other shows. The Data Engineering Podcast covers the latest on modern data management. Podcast.__init__ covers the Python language, its community, and the innovative ways it is being used.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@themachinelearningpodcast.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

River
scikit-multiflow
Federated Machine Learning
Hogwild! Google Paper
Chip Huyen concept drift blog post
Dan Crenshaw Berkeley Clipper MLOps
Robustness Principle
NY Taxi Dataset
RiverTorch
River Public Roadmap
Beaver tool for deploying online models
Prodigy ML human in the loop labeling

The intro and outro music is from Hitman’s Lovesong feat. Paola Graziano by The Freak Fandango Orchestra/CC BY-SA 3.0


 Sponsored By:Linode: Do you want to try out some of the tools and applications that you heard about on Podcast.\_\_init\_\_? Do you have a side project that you want to share with the world? With Linode's managed Kubernetes platform it's now even easier to get started with the latest in cloud technologies. With the combined power of the leading container orchestrator and the speed and reliability of Linode's object storage, node balancers, block storage, and dedicated CPU or GPU instances, you've got everything you need to scale up. Go to [pythonpodcast.com/linode](https://www.pythonpodcast.com/linode) today and get a $100 credit to launch a new cluster, run a server, upload some data, or... And don't forget to thank them for being a long time supporter of Podcast.\_\_init\_\_!

Update Your Model's View Of The World In Real Time With Streaming Machine Learning Using River

Preamble
This is a cross-over episode from our new show The Machine Learning Podcast, the show about going from idea to production with machine learning.
Summary
Deep learning is a revolutionary category of machine learning that accelerates our ability to build powerful inference models. Along with that power comes a great deal of complexity in determining what neural architectures are best suited to a given task, engineering features, scaling computation, etc. Predibase is building on the successes of the Ludwig framework for declarative deep learning and Horovod for horizontally distributing model training. In this episode CTO and co-founder of Predibase, Travis Addair, explains how they are reducing the burden of model development even further with their managed service for declarative and low-code ML and how they are integrating with the growing ecosystem of solutions for the full ML lifecycle.
Announcements

Hello and welcome to Podcast.__init__, the podcast about Python and the people who make it great!
When you’re ready to launch your next app or want to try a project you hear about on the show, you’ll need somewhere to deploy it, so take a look at our friends over at Linode. With their managed Kubernetes platform it’s easy to get started with the next generation of deployment and scaling, powered by the battle tested Linode platform, including simple pricing, node balancers, 40Gbit networking, dedicated CPU and GPU instances, and worldwide data centers. And now you can launch a managed MySQL, Postgres, or Mongo database cluster in minutes to keep your critical data safe with automated backups and failover. Go to pythonpodcast.com/linode and get a $100 credit to try out a Kubernetes cluster of your own. And don’t forget to thank them for their continued support of this show!
Your host is Tobias Macey and today I’m interviewing Travis Addair about Predibase, a low-code platform for building ML models in a declarative format

Interview

Introduction
How did you get involved in machine learning?
Can you describe what Predibase is and the story behind it?
Who is your target audience and how does that focus influence your user experience and feature development priorities?
How would you describe the semantic differences between your chosen terminology of "declarative ML" and the "autoML" nomenclature that many projects and products have adopted?

Another platform that launched recently with a promise of "declarative ML" is Continual. How would you characterize your relative strengths?


Can you describe how the Predibase platform is implemented?

How have the design and goals of the product changed as you worked through the initial implementation and started working with early customers?
The operational aspects of the ML lifecycle are still fairly nascent. How have you thought about the boundaries for your product to avoid getting drawn into scope creep while providing a happy path to delivery?


Ludwig is a core element of your platform. What are the other capabilities that you are layering around and on top of it to build a differentiated product?
In addition to the existing interfaces for Ludwig you created a new language in the form of PQL. What was the motivation for that decision?

How did you approach the semantic and syntactic design of the dialect?
What is your vision for PQL in the space of "declarative ML" that you are working to define?


Can you describe the available workflows for an individual or team that is using Predibase for prototyping and validating an ML model?

Once a model has been deemed satisfactory, what is the path to production?


How are you approaching governance and sustainability of Ludwig and Horovod while balancing your reliance on them in Predibase?
What are some of the notable investments/improvements that you have made in Ludwig during your work of building Predibase?
What are the most interesting, innovative, or unexpected ways that you have seen Predibase used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on Predibase?
When is Predibase the wrong choice?
What do you have planned for the future of Predibase?

Contact Info

LinkedIn
tgaddair on GitHub
@travisaddair on Twitter

Parting Question

From your perspective, what is the biggest barrier to adoption of machine learning today?

Closing Announcements

Thank you for listening! Don’t forget to check out our other shows. The Data Engineering Podcast covers the latest on modern data management. The Machine Learning Podcast helps you go from idea to production with machine learning.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@podcastinit.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

Predibase
Horovod
Ludwig

Podcast.__init__ Episode


Support Vector Machine
Hadoop
Tensorflow
Uber Michaelangelo
AutoML
Spark ML Lib
Deep Learning
PyTorch
Continual

Data Engineering Podcast Episode


Overton
Kubernetes
Ray
Nvidia Triton
Whylogs

Data Engineering Podcast Episode


Weights and Biases
MLFlow
Comet
Confusion Matrices
dbt

Data Engineering Podcast Episode


Torchscript
Self-supervised Learning

The intro and outro music is from Hitman’s Lovesong feat. Paola Graziano by The Freak Fandango Orchestra/CC BY-SA 3.0




Declarative Machine Learning For High Performance Deep Learning Models With Predibase

Preamble
This is a cross-over episode from our new show The Machine Learning Podcast, the show about going from idea to production with machine learning.
Summary
Machine learning has the potential to transform industries and revolutionize business capabilities, but only if the models are reliable and robust. Because of the fundamental probabilistic nature of machine learning techniques it can be challenging to test and validate the generated models. The team at Deepchecks understands the widespread need to easily and repeatably check and verify the outputs of machine learning models and the complexity involved in making it a reality. In this episode Shir Chorev and Philip Tannor explain how they are addressing the problem with their open source deepchecks library and how you can start using it today to build trust in your machine learning applications.
Announcements

Hello and welcome to the Machine Learning Podcast, the podcast about machine learning and how to bring it from idea to delivery.
Do you wish you could use artificial intelligence to drive your business the way Big Tech does, but don’t have a money printer? Graft is a cloud-native platform that aims to make the AI of the 1% accessible to the 99%. Wield the most advanced techniques for unlocking the value of data, including text, images, video, audio, and graphs. No machine learning skills required, no team to hire, and no infrastructure to build or maintain. For more information on Graft or to schedule a demo, visit themachinelearningpodcast.com/graft today and tell them Tobias sent you.
Predibase is a low-code ML platform without low-code limits. Built on top of our open source foundations of Ludwig and Horovod, our platform allows you to train state-of-the-art ML and deep learning models on your datasets at scale. Our platform works on text, images, tabular, audio and multi-modal data using our novel compositional model architecture. We allow users to operationalize models on top of the modern data stack, through REST and PQL – an extension of SQL that puts predictive power in the hands of data practitioners. Go to themachinelearningpodcast.com/predibase today to learn more and try it out!
Data powers machine learning, but poor data quality is the largest impediment to effective ML today. Galileo is a collaborative data bench for data scientists building Natural Language Processing (NLP) models to programmatically inspect, fix and track their data across the ML workflow (pre-training, post-training and post-production) – no more excel sheets or ad-hoc python scripts. Get meaningful gains in your model performance fast, dramatically reduce data labeling and procurement costs, while seeing 10x faster ML iterations. Galileo is offering listeners a free 30 day trial and a 30% discount on the product there after. This offer is available until Aug 31, so go to themachinelearningpodcast.com/galileo and request a demo today!
Your host is Tobias Macey and today I’m interviewing Shir Chorev and Philip Tannor about Deepchecks, a Python package for comprehensively validating your machine learning models and data with minimal effort.

Interview

Introduction
How did you get involved in machine learning?
Can you describe what Deepchecks is and the story behind it?
Who is the target audience for the project?

What are the biggest challenges that these users face in bringing ML models from concept to production and how does DeepChecks address those problems?


In the absence of DeepChecks how are practitioners solving the problems of model validation and comparison across iteratiosn?

What are some of the other tools in this ecosystem and what are the differentiating features of DeepChecks?


What are some examples of the kinds of tests that are useful for understanding the "correctness" of models?

What are the methods by which ML engineers/data scientists/domain experts can define what "correctness" means in a given model or subject area?


In software engineering the categories of tests are tiered as unit -> integration -> end-to-end. What are the relevant categories of tests that need to be built for validating the behavior of machine learning models?
How do model monitoring utilities overlap with the kinds of tests that you are building with deepchecks?
Can you describe how the DeepChecks package is implemented?

How have the design and goals of the project changed or evolved from when you started working on it?
What are the assumptions that you have built up from your own experiences that have been challenged by your early users and design partners?


Can you describe the workflow for an individual or team using DeepChecks as part of their model training and deployment lifecycle?
Test engineering is a deep discipline in its own right. How have you approached the user experience and API design to reduce the overhead for ML practitioners to adopt good practices?
What are the interfaces available for creating reusable tests and composing test suites together?
What are the additional services/capabilities that you are providing in your commercial offering?

How are you managing the governance and sustainability of the OSS project and balancing that against the needs/priorities of the business?


What are the most interesting, innovative, or unexpected ways that you have seen DeepChecks used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on DeepChecks?
When is DeepChecks the wrong choice?
What do you have planned for the future of DeepChecks?

Contact Info

Shir

LinkedIn
shir22 on GitHub


Philip

LinkedIn
@philiptannor on Twitter



Parting Question

From your perspective, what is the biggest barrier to adoption of machine learning today?

Closing Announcements

Thank you for listening! Don’t forget to check out our other shows. The Data Engineering Podcast covers the latest on modern data management. Podcast.__init__ covers the Python language, its community, and the innovative ways it is being used.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@themachinelearningpodcast.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

DeepChecks
Random Forest
Talpiot Program
SHAP

Podcast.__init__ Episode


Airflow
Great Expectations

Data Engineering Podcast Episode



The intro and outro music is from Hitman’s Lovesong feat. Paola Graziano by The Freak Fandango Orchestra/CC BY-SA 3.0




Build Better Machine Learning Models With Confidence By Adding Validation With Deepchecks

Preamble
This is a cross-over episode from our new show The Machine Learning Podcast, the show about going from idea to production with machine learning.
Summary
Building an ML model is getting easier than ever, but it is still a challenge to get that model in front of the people that you built it for. Baseten is a platform that helps you quickly generate a full stack application powered by your model. You can easily create a web interface and APIs powered by the model you created, or a pre-trained model from their library. In this episode Tuhin Srivastava, co-founder of Basten, explains how the platform empowers data scientists and ML engineers to get their work in production without having to negotiate for help from their application development colleagues.
Announcements

Hello and welcome to the Machine Learning Podcast, the podcast about machine learning and how to bring it from idea to delivery.
When you’re ready to launch your next app or want to try a project you hear about on the show, you’ll need somewhere to deploy it, so take a look at our friends over at Linode. With their managed Kubernetes platform it’s easy to get started with the next generation of deployment and scaling, powered by the battle tested Linode platform, including simple pricing, node balancers, 40Gbit networking, dedicated CPU and GPU instances, and worldwide data centers. And now you can launch a managed MySQL, Postgres, or Mongo database cluster in minutes to keep your critical data safe with automated backups and failover. Go to pythonpodcast.com/linode and get a $100 credit to try out a Kubernetes cluster of your own. And don’t forget to thank them for their continued support of this show!
Your host is Tobias Macey and today I’m interviewing Tuhin Srivastava about Baseten, an ML Application Builder for data science and machine learning teams

Interview

Introduction
How did you get involved in machine learning?
Can you describe what Baseten is and the story behind it?
Who are the target users for Baseten and what problems are you solving for them?
What are some of the typical technical requirements for an application that is powered by a machine learning model?

In the absence of Baseten, what are some of the common utilities/patterns that teams might rely on?


What kinds of challenges do teams run into when serving a model in the context of an application?
There are a number of projects that aim to reduce the overhead of turning a model into a usable product (e.g. Streamlit, Hex, etc.). What is your assessment of the current ecosystem for lowering the barrier to product development for ML and data science teams?
Can you describe how the Baseten platform is designed?

How have the design and goals of the project changed or evolved since you started working on it?
How do you handle sandboxing of arbitrary user-managed code to ensure security and stability of the platform?


How did you approach the system design to allow for mapping application development paradigms into a structure that was accessible to ML professionals?
Can you describe the workflow for building an ML powered application?
What types of models do you support? (e.g. NLP, computer vision, timeseries, deep neural nets vs. linear regression, etc.)

How do the monitoring requirements shift for these different model types?
What other challenges are presented by these different model types?


What are the limitations in size/complexity/operational requirements that you have to impose to ensure a stable platform?
What is the process for deploying model updates?
For organizations that are relying on Baseten as a prototyping platform, what are the options for taking a successful application and handing it off to a product team for further customization?
What are the most interesting, innovative, or unexpected ways that you have seen Baseten used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on Baseten?
When is Baseten the wrong choice?
What do you have planned for the future of Baseten?

Contact Info

@tuhinone on Twitter
LinkedIn

Parting Question

From your perspective, what is the biggest barrier to adoption of machine learning today?

Closing Announcements

Thank you for listening! Don’t forget to check out our other shows. The Data Engineering Podcast covers the latest on modern data management. Podcast.__init__ covers the Python language, its community, and the innovative ways it is being used.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@themachinelearningpodcast.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

Baseten
Gumroad
scikit-learn
Tensorflow
Keras
Streamlit

Podcast.__init__ Episode


Retool
Hex

Podcast.__init__ Episode


Kubernetes
React Monaco
Huggingface
Airtable
Dall-E 2
GPT-3
Weights and Biases

The intro and outro music is from Hitman’s Lovesong feat. Paola Graziano by The Freak Fandango Orchestra/CC BY-SA 3.0




Build A Full Stack ML Powered App In An Afternoon With Baseten

Summary
Starting a new project is always exciting and full of possibility, until you have to set up all of the repetitive boilerplate. Fortunately there are useful project templates that eliminate that drudgery. PyScaffold goes above and beyond simple template repositories, and gives you a toolkit for different application types that are packed with best practices to make your life easier. In this episode Florian Wilhelm shares the story behind PyScaffold, how the templates are designed to reduce friction when getting a new project off the ground, and how you can extend it to suit your needs. Stop wasting time with boring boilerplate and get straight to the fun part with PyScaffold!
Announcements

Hello and welcome to Podcast.__init__, the podcast about Python and the people who make it great!
When you’re ready to launch your next app or want to try a project you hear about on the show, you’ll need somewhere to deploy it, so take a look at our friends over at Linode. With their managed Kubernetes platform it’s easy to get started with the next generation of deployment and scaling, powered by the battle tested Linode platform, including simple pricing, node balancers, 40Gbit networking, dedicated CPU and GPU instances, and worldwide data centers. And now you can launch a managed MySQL, Postgres, or Mongo database cluster in minutes to keep your critical data safe with automated backups and failover. Go to pythonpodcast.com/linode and get a $100 credit to try out a Kubernetes cluster of your own. And don’t forget to thank them for their continued support of this show!
Your host as usual is Tobias Macey and today I’m interviewing Florian Wilhelm about PyScaffold, a Python project template generator with batteries included

Interview

Introductions
How did you get introduced to Python?
Can you describe what PyScaffold is and the story behind it?

What is the main goal of the project?


There are a huge number of templates and starter projects available (both in Python and other languages). What are the aspects of PyScaffold that might encourage someone to adopt it?
What are the different types/categories of applications that you are focused on supporting with the scaffolding?

For each category, what is your selection process for which dependencies to include?


How do you approach the work of keeping the various components up to date with community "best practices"?
Can you describe how PyScaffold is implemented?

How have the design and goals of the project changed since you first started it?


What is the user experience for someone bootstrapping a project with PyScaffold?

How can you adapt an existing project into the structure of a pyscaffold template?
Are there any facilities for updating a project started with PyScaffold to include patches/changes in the source template?


What are the most interesting, innovative, or unexpected ways that you have seen PyScaffold used?
What are the most interesting, unexpected, or challenging lessons that you have learned while working on PyScaffold?
When is PyScaffold the wrong choice?
What do you have planned for the future of PyScaffold?

Keep In Touch

Website
LinkedIn
FlorianWilhelm on GitHub
@florianwilhelm on Twitter

Picks

Tobias

Daredevil TV series


Florian

The Peripheral



Closing Announcements

Thank you for listening! Don’t forget to check out our other shows. The Data Engineering Podcast covers the latest on modern data management. The Machine Learning Podcast helps you go from idea to production with machine learning.
Visit the site to subscribe to the show, sign up for the mailing list, and read the show notes.
If you’ve learned something or tried out a project from the show then tell us about it! Email hosts@podcastinit.com) with your story.
To help other people find the show please leave a review on iTunes and tell your friends and co-workers

Links

PyScaffold
Innovex
SAP
Cookiecutter
Pytest

Podcast Episode


Sphinx
pre-commit

Podcast Episode


Black
Flake8

Podcast Episode


Poetry
Setuptools
mkdocs
ReStructured Text
Markdown
Setuptools-SCM
Hatch
Flit
Versioneer
Gource git visualization
MyPy Compiler
Rust Cargo

The intro and outro music is from Requiem for a Fish The Freak Fandango Orchestra  / CC BY-SA




Generate Your Text Files With Python Using Cog

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