Coverage.py was originally written by Gareth Rees, and since 2004 has been extended and maintained by Ned Batchelder. Other contributions, including writing code, updating docs, and submitting useful bug reports, have been made by: Abdeali Kothari Adi Roiban Agbonze O. Jeremiah Albertas Agejevas Aleksi Torhamo Alex Gaynor Alex Groce Alex Sandro Alexander Todorov Alexander Walters Andrew Hoos Anthony Sottile Arcadiy Ivanov Aron Griffis Artem Dayneko Ben Finney Bernát Gábor Bill Hart Brandon Rhodes Brett Cannon Bruno P. Kinoshita Buck Evan Calen Pennington Carl Gieringer Catherine Proulx Chris Adams Chris Jerdonek Chris Rose Chris Warrick Christian Heimes Christine Lytwynec Christoph Zwerschke Conrad Ho Cosimo Lupo Dan Hemberger Dan Riti Dan Wandschneider Danek Duvall Daniel Hahler Danny Allen David Christian David MacIver David Stanek David Szotten Detlev Offenbach Devin Jeanpierre Dirk Thomas Dmitry Shishov Dmitry Trofimov Eduardo Schettino Eli Skeggs Emil Madsen Edward Loper Federico Bond Frazer McLean Geoff Bache George Paci George Song George-Cristian Bîrzan Greg Rogers Guido van Rossum Guillaume Chazarain Hugo van Kemenade Ilia Meerovich Imri Goldberg Ionel Cristian Mărieș JT Olds Jessamyn Smith Joe Doherty Joe Jevnik Jon Chappell Jon Dufresne Joseph Tate Josh Williams Julian Berman Julien Voisin Justas Sadzevičius Kjell Braden Krystian Kichewko Kyle Altendorf Lars Hupfeldt Nielsen Leonardo Pistone Lex Berezhny Loïc Dachary Marc Abramowitz Marcus Cobden Marius Gedminas Mark van der Wal Martin Fuzzey Matt Bachmann Matthew Boehm Matthew Desmarais Max Linke Michał Bultrowicz Mickie Betz Mike Fiedler Nathan Land Noel O'Boyle Olivier Grisel Ori Avtalion Pankaj Pandey Pablo Carballo Patrick Mezard Peter Baughman Peter Ebden Peter Portante Reya B Rodrigue Cloutier Roger Hu Ross Lawley Roy Williams Salvatore Zagaria Sandra Martocchia Scott Belden Sigve Tjora Simon Willison Stan Hu Stefan Behnel Stephan Richter Stephen Finucane Steve Leonard Steve Peak S. Y. Lee Ted Wexler Thijs Triemstra Titus Brown Ville Skyttä Yury Selivanov Zac Hatfield-Dodds Zooko Wilcox-O'Hearn