Past Meetings • Recent Topics

Thu, Oct 09 2014 at 07:00 PM at Braintree

Data Science Pipeline in Python
(20 Minutes)
By: Kevin Goetsch

In my view, the core of Data Science is the development of predictive models (recommendation engines, fraud detection, churn prediction, etc.). While predictive models can be built in a number of languages I choose to do my work in Python because the Data Science Pipeline is more than just building models. I'll talk about the larger model development process and how I use Python to automate and document my work.
Write Pretty Code
(20 Minutes)
By: Brian Ray

Journey into the world of poorly formatted code to beautiful written pep8 styled goodness.
78 Python enthusiasts attended this meeting.

Thu, Sep 11 2014 at 07:00 PM at Echo Global Logistics

Automated testing with the robot framework
(60 Minutes)
By: Bryan Oakley

Robot framework ( is an automated acceptance testing framework written in python. It can be used for a wide range of testing activities, from web, mobile and desktop UI testing, to database testing, RESTful and SOAP services, and much more. Bryan will give a brief overview, do some demonstrations, and answer questions.
71 Python enthusiasts attended this meeting.

Thu, Aug 14 2014 at 07:00 PM at DSSG - The University of Chicago (downtown)

Nurse-Family Partnership
(30 Minutes)
By: *Young-Jin Kim, Sarah Abraham, Jeff Lockhart, Sarah Tan, Rafael Turner

Young, low-income, first-time mothers and their babies often face dramatically increased risks to their health, education, and economic self-sufficiency. Nurse-Family Partnership (NFP), a national nonprofit organization, intervenes by pairing these mothers with specially-trained, registered nurses. Expectant mothers receive regular home visits from pregnancy until the baby is two years old. The result: healthier pregnancies, more stable families, and better developmental outcomes for children.
(30 Minutes)
By: *Ben Yuhas, Julius Adebayo, Nick Eng, Eric Potash, Layla Pournajaf

The maternal deaths in Mexico from pregnancy, childbirth or postpartum complications have decreased from 89 deaths per 100,000 live births in 1990 to 43 in 2011. Despite this improvement, the rate of decline has significantly slowed and Mexico is not on track to achieve its Millennium Development Goal of reducing maternal mortality 75% by 2015.
Sunlight Foundation
(30 Minutes)
By: *Varun Chandola, Nadya Calderon, Scott Cambo, Christopher Lazarus, Raphael Stern

Government legislation is not designed for readability, and their volumes of text are not easily analyzed. Advocacy and research groups would like a way to digest bills quickly, filtering out the bureaucratic jargon and leaving the important details. The Sunlight Foundation is a nonpartisan nonprofit that uses technology to make governments more accountable. Their API for federal bills are valuable streams of legislative text that can be used for analysis given the right tools.
World Bank
(30 Minutes)
By: *Eric Rozier, Jeff Alstott, Dylan Fitzpatrick, Carlos Petricioli, Misha Teplitskiy

The World Bank Group lends billions of dollars every year to fund large infrastructure projects around the globe. Project-related contracts are awarded to companies and entities via open and competitive bidding processes. Such processes can sometimes be subject to collusion and corruption risks.
Conservation Institute
(30 Minutes)
By: *Varun Chandola, Nadya Calderon, Scott Cambo, Christopher Lazarus, Raphael Stern

Conservation International (CI) is a non-profit organization that works to protect nature through scientific research and partnerships with communities, industry, and governments. A key aspect for evaluating the impact of conservation projects is to account for natural capital – ecosystem goods and services, such as fresh water, flood control, agriculture, and forest products.
84 Python enthusiasts attended this meeting.

Thu, Jul 10 2014 at 07:00 PM at Vokal interactive / Mobile makers

Webhooks @ Braintree
(20 Minutes)
By: Brian Lesperance

At Braintree, we use Tornado to send thousands of simultaneous webhook requests and Pika to pull incoming webhooks from RabbitMQ. Learn about how we've set it up and problems we've had to overcome with this approach.
50 Python enthusiasts attended this meeting.

Thu, Jun 12 2014 at 07:00 PM at Groupon Chicago HQ

Engineering at Groupon - Beyond the Daily Deal
(25 Minutes)
By: Tyler Jennings

Tyler Jennings, Director of Engineering at Groupon, will be providing a high level overview of the unique problems our domain presents and the systems we've built to overcome them.
You Down With EPP? Yeah, You Know Me!
(15 Minutes)
By: Jason Wirth

You Down With EPP? Yeah, You Know Me! In this talk I'll discuss the Embarrassing Parallel Problems and introduce the basics of GPU computing with Python.
Computations comparisons between pure Python vs using numpy, or PyPy, or a C extension...
By: Brad Martsberger

Brad will talk on computation comparisons of collection of tools "Logistic Map Bifurcation Diagram" ( for creating pretty images of the bifurcation diagram of the logistic map.
89 Python enthusiasts attended this meeting.