Professional Python® and open source consulting and programming since 2004

Our goal since 2004 has been to advance the use of open source software and related technology. We have maintained this focus by successfully undertaking a variety of professional endeavors throughout the years including, but not limited to the following: Alex Clark is the creator and project lead for Pillow; we are the organizers and leaders of DC Python, a 501(c)(3) organization; we were the lead organizers and hosts of Plone Conference 2008; we consistently provide successful open source software development, consulting, training, hosting and support for numerous organizations in the U.S. and all over the world, from Amtrak to USAID. We will continue to reinforce and expand our commitment, outreach, and involvement with both open source technology and the community that depends on it.


Python Imaging Library (fork)

In 2010, Alex Clark created Pillow , a software development fork of the venerable Python Imaging Library. As of early 2017, Pillow has been downloaded over 15 million times, can be found in many major Linux distributions such as Ubuntu and Fedora Core, and is used by Fortune-100-serving companies like Atlassian.

As of 2019, professional Pillow support is available from Tidelift.

1 >>> from PIL import Image
2 >>> im ="hopper.ppm")
5 >>> print(im.format, im.size, im.mode)
6 PPM (512, 512) RGB
Plone 3.3 Site Administration

In this book Alex Clark helps Plone users to create, deploy, and maintain all versions of Plone up to and including the latest version.

The text covers Plone basics from a site administrator's perspective including (but not limited to) instructions on how to:

  • Learn the use of Buildout to develop, deploy, and maintain a modern Plone site.
  • Enhance the functionality and appearance of your web site by using third-party add-ons.
  • Learn to use many useful Buildout recipes available to download from the Python Package Index.
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"Alex and his company successfully bid to perform enhancements to the Land Trust Alliance website in July 2011 and have been doing routine development and maintenance ever since. We are very happy with their performance, and the performance of our site!"

—Kimberly Seese, Communications Specialist at Land Trust Alliance

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DC Python

In 2008, we created ZPUGDC, Inc., a 501(c)(3) non-profit organization known as the DC Python User's Group. We created this organization in an effort to expa nd our outreach and give back to the users and supporters of open source technology. DC Python is focused primarily on serving members of the local Washington, D.C., M aryland, and Virginia Python community, but we also support a larger area and scope of open-source technology efforts, worldwide. One of our most significant global co ntributions was the organization and hosting of the international Plone Conference 2008.

We continue to maintain our leadership responsibilities in the DC Python organization. We provide management and facilitate regular meetings, sprints, and m any other Python-related events and activities for the local Python community. We assume all responsibilities for the organization ensuring a continued commitment to i ts mission.

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