@fgregg did Notebooks predate NumPy? IPython is just a few years older than the NumPy name but I want aware enough in 2001-2005 to know what was drawing people into Python at the time. Ruby certainly didn’t feel real to me until Rails in ~2006; I’m unclear why it was chosen by a PHP refugee.
@migurski @urschrei @fgregg Not as a primary cause, but contributing, I think, is that by 2007 python has a reputation for having a library for everything: https://xkcd.com/353/
@vruba @urschrei @fgregg PG was also bloviating about it as early as 2004 https://www.paulgraham.com/pypar.html