Author Archives: JeffH

July 20 Meeting – Intro to ML and Algorithmic Trading

Jeff Milewski will be giving a talk, “introduction to machine learning and algorithmic trading using Quantopian.”  He’ll briefly explain some machine learning techniques and libraries and how they can be used to set up a trading strategy using

Event Details:

  • Where: DoSpace @ 7205 Dodge Street / Small Conference Room
  • When: July 20, 2016 @ 6:30pm – 8:00pm
  • Who: People interested in programming with Python

Meeting Tonight! 2015-01-21

Location – Gordmans Office Building in Aksarben thanks to Aaron Keck.

Meeting starts at 6pm, Wednesday, 1/21/15

Parking and entry details:

The building is the northwest corner of 67th and Frances and the Gordmans entrance is next to the “g” sign, about midway along the East side of the building. There’s parking directly out front, but it sometimes fills up in the evenings. The garage around back is open to the public after 5:30 or 6 as well.

The building doors lock at 5, so Aaron will be standing by to badge people in starting around 5:45. If you’re running late, or early, just shoot him or the list an email.

May 21 – Meeting Notes

Topics of Discussion:

  • pandas – Python Data Analysis Library
  • ipython – a rich architecture for interactive computing
  • django – django and the agony of send file
  • dashboards and stoplights
  • Zato – The next generation ESB and application server written in Python.
  • pythonanywhere – Host, run, and code Python in the cloud!
  • open refine –  (formerly Google Refine) is a powerful tool for working with messy data
  • paramiko – Python (2.6+, 3.3+) implementation of the SSHv2 protocol
  • pysftp – A simple interface to sftp. based on zeth’s (by our own Jeff Hinrichs)


Had a great meeting tonight.  Thanks to everyone who contributed. Be sure and put the next meeting date on your calendar – June 18, 2014.

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Last feed update: Monday January 22nd, 2018 03:52:57 PM

MicroPython on ESP32: Tools –

Wednesday September 27th, 2017 03:08:26 AM JeffH
These are my notes on using some MicroPython specific tools in relation to a ESP32-DevKitC board. These notes are for v2.1 of the esptool; an ESP8266 and ESP32 serial bootloader utility. esptool has a number of functions, but I will only speak to those features required to identify the chip, get flash information and load [...]

MicroPython on ESP32: Tools – virtual environments vs system installs

Saturday September 23rd, 2017 11:52:30 PM JeffH
These are my notes on using some MicroPython specific tools in relation to a ESP32-DevKitC board. There are many tutorials and youtube videos that constantly encourage users to install tools and packages into their system-level libraries. (If you need to use sudo when you pip install foo, you are installing it as a system level [...]

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Omaha Python Users Group Meeting, Nov 21, 2011

Tonight’s Meeting Topics:

-- Selenium2 --

Selenium RC vs Webdriver -
Selenium -
Why -

Firefox, Chrome, Ie, iOS, Android, Opera

-- Setting up an environment --
  virtualenv --no-site-packages Se-Pres(entation)
  cd Se-Pres
  source bin/activate
  easy_install selenium
Now fire up an interpreter:
  from selenium import webdriver
  b = webdriver.Firefox()
  b.get_cookies()   (a list of dicts, each containing a cookie and support info)

>>> b.find_element_by_name('q')
<selenium.webdriver.remote.webelement.WebElement object at 0x874b22c>
>>> sbx = b.find_element_by_name('q')
>>> sbx.send_keys('omaha python')
>>> sbx.submit()
>>> b.title
u'omaha python - Google Search'


-- Other Helpful things --
unittest -
nose -

nose-testconfig -

The meeting concluded about 9pm when the venue closed but we continued with a 15 minute parking lot track that included references to Code Complete and general development concepts.  Great Meeting! and everyone is looking forward to the next.

Omaha Python Users Group Meeting, June 20, 2011

Tonight’s Meeting:

Joe talked about the 2 semester course he attended at Iowa Western on Linux Engineering.

Steve talked about Code Like a Pythonista, by David Goodger.  He thinks it is a great resource.  I agree with him. (So much I did a presentation on David’s material back in 2008).  Steve also liked the Python Challenge.  He has made it though the first 5 or 6 so far and hopes to make it all the way through.

Joe brought up the fact that Full Circle Magazine – has released two specific Python issues, Issue 1 and Issue 2.

Jeff brought a Code editor that he likes, Editra.  It is a very nice, rapidly advancing development environment.  If you are in the market you should take a look if Komodo or PyCharm are turning your head.

A non-python, learn how to program environment is MIT’s Scratch.  Joe likes Snake Wrangling for Kids.