mannibm redbookspacktadobe pressft pressapressmanningnew ridersmcgraw-hilljones bartlettcourse technologyand hundreds more for more information about safari books onlineplease visit us online how to contact us please address comments and questions concerning this book to the publishero'reilly mediainc gravenstein highway north sebastopolca (in the united states or canada(international or local(faxwe have web page for this bookwhere we list errataexamplesand any additional information you can access this page at to comment or ask technical questions about this booksend email to bookquestions@oreilly com for more information about our bookscoursesconferencesand newssee our website at find us on facebookfollow us on twitterwatch us on youtubeacknowledgments from andreas without the help and support of large group of peoplethis book would never have existed would like to thank the editorsmeghan blanchettebrian macdonaldand in particular dawn schanafeltfor helping sarah and me make this book reality want to thank my reviewersthomas caswellolivier griselstefan van der waltand john myles whitewho took the time to read the early versions of this book and provided me with invaluable feedback--in addition to being some of the cornerstones of the scientific open source ecosystem preface xi