Lennart Regebro
Principal Software Engineer at Python Software Foundation
Wroclaw Metropolitan Area Poland
Summary
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RockstarLennart Regebro is a Principal Software Engineer at Fidelity with 24 years of experience building robust back-end systems and improving developer tooling. Based in Wroclaw, he combines deep Python expertise with practical contributions to prominent open-source projects like lxml and setuptools, where he improved XML namespace handling, serialization, and test infrastructure. He is an active Fellow of the Python Software Foundation and has a track record of fixing tricky encoding, parsing, and packaging bugs across libraries such as icalendar. Comfortable across full-stack tasks—evidenced by his hovercraft work adding image, font and math support to a presentation tool—he brings both maintenance craftsmanship and pragmatic feature development. Off-hours he claims mastery of absinthe distilling, hinting at a quirky blend of precision and creativity.
24 years of coding experience
Swedish, English, French
Stackoverflow
169,873reputation
35.9mreached
1,500answers
12questions
type-conversion
top-5%
encoding
top-5%
package
top-5%
virtualenv
top-5%
oop
top-1%
dictionary
top-5%
Github Skills (96)
parserator10
datetime10
parser10
python10
testing10
code-generation10
lxml10
encoding10
pip10
timezone10
operator10
javascript10
linux10
indentation10
pickle10
Programming languages (12)
Github contributions (5)
regebro/hovercraft
Jan 2013 - Apr 2022
Make dynamic impressive presentations from text files!
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:297 commits, 64 PRs, 148 pushes in 9 years 4 months
Contributions summary:Lennart implemented features and fixed bugs related to the impress.js presentation tool, making modifications to the JavaScript, XSLT, and Python code. They contributed new functionality and improved the overall structure of the project. The user also added support for images, fonts and a math rendering library by modifying template files and the main code.
text-filespython
collective/icalendar
Apr 2005 - Nov 2014
icalendar parser library for Python
Role in this project:Back-end Developer
Back-end DeveloperContributions:35 commits, 7 comments in 9 years 8 months
Contributions summary:Lennart primarily contributed to bug fixes and enhancements within the `icalendar` library. Their work included fixing syntax errors, resolving UTF-8 encoding issues, and correcting bugs related to data handling and parsing. They also made improvements related to the library's handling of binary data. The user's commits demonstrate a focus on improving the library's robustness and functionality.
icalendarparser-librarypythonparseralarm
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