Dayton Dynamic Languages Group

Welcome to DDL!

About Us

We’re a group of Dayton-area programmers who help each other learn how to write in dynamic languages. We’re casual, inquisitive, beginner-friendly, and include both professionals and amateurs.
If you’re interested in Ruby (including Rails), Python (including Django), PHP, Perl, Javascript, Scheme, Lisp, Smalltalk, etc, this is the place for you. Now and then we poke into other languages, too, particularly if they seem interesting and exciting.

We’re responsive and informal; if there’s a topic you’d like to present on or just like to see, we’ll probably be interested in it too!

We are a Special Interest Group (SIG) of the Dayton Microcomputer Association. See other DMA SIG meetings at [Meetup](http://www.meetup.com/Dayton-Microcomputer-Association-Meetup/

Upcoming Meetings

Our monthly meetings take place at Dayton’s Innovation Hub, but we also use the “General” voice channel of the PyFri Discord, so if you aren’t fully vaccinated or can’t make it downtown for any other reason, feel free to join us online.

July 2025: Profiling Python // uv, simplified

July 09, 2025

July 2025: Profiling Python programs / uv, simplified

Double-header for July!

Profiling Python programs

If your Python program runs slowly and/or is using too much memory, don’t just go haring off trying to optimize it based on eyeballing the code and taking a guess. There is a variety of tools available to help you zero in on which portions of your program are the bottleneck, and that’s the first and most important step of fixing your speed problems. We’ll try out py-spy and memray.

and

uv (simplified)

We had an introduction to uv last year - the package and Python installer that’s conquering the Python world, but it was a lot to take in. In case it went by in a blur, we’re going to do a re-introduction that’s intentionally slimmed-down and slower. (But we’ll also add in a few terribly nice new features, too.)

Location: Innovation Hub

We’re back in person!

We meet in the Innovation Hub, a gorgeous new facility that’s part of the renovated Dayton Arcade complex.
Enter through the doors that face the Wright Stop Plaza bus hub.

Street parking is free in the evening. I usually park on Ludlow Street.

or

if for any reason coming downtown doesn’t work for you (for instance, you’ve been exposed to COVID, or you’ve converted yourself to purely digital format and now exist as a set of cloud-hosted algorithms), we’ll be online as well!

Join us at 7 PM EDT on the PyFri Discord channel, discord.gg/9SgTh3T, and click on the General voice chat link. You may need to install the Discord desktop app rather than just using the web interface.

PyFri@WBI: Python self-study meetups

time change to 2 PM

Together with Tec^Edge, we’re having an informal weekly lunchtime meeting for folks learning Python. No program, just come to share questions with each other, show off what you’ve been working on, and discuss. We meet most Fridays at 2 PM (changed from noon!), barring holidays.

For now, PyFri meets online in the “General” voice channel of the PyFri Discord. Once things are back to normal, we’ll return to meeting at the Wright Brothers Institute. Check meetup to make sure we’re meeting on a particular Friday.

Calendar link: https://calendar.google.com/event?action=TEMPLATE&tmeid=NDZzamEwb2lhZzRkYjk0Zml2dDM4cjdwb2kgY2F0aGVyaW5lLmRldmxpbkBt&tmsrc=catherine.devlin%40gmail.com

PyFri notebooks

Some Jupyter notebooks from our Friday sessions are posted at https://github.com/dayton-dynamic/pyfri

Mailing list

We have a mailing list that we use for occasional discussion, but usually just monthly meeting reminders. It’s extremely low traffic and definitely the best way to know what is going on with the group.

Location

New home!

We meet meet on the !2nd Wednesday of every month from 7 to 9 pm at Dayton’s Innovation Hub

All Meetings

Dayton

Dayton is home of the Dayton Microcomputer Association, one of the country’s oldest computer user groups. DMA serves as an umbrella group for a variety of Special Interest Groups like ours - see DMA’s meetup page.

The Dayton Tech Guide has links to a variety of resources in Dayton’s technical community.

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