Thanks so much, Matthias, not just for this lovely anniversary gift, but more importantly, for all the hard work you keep putting into IPython!!
For the curious - I did start work on IPython around October 2001, and shared some of that privately. Unfortunately I lost my email archives prior to 2006, so I can’t dig out some of the fascinating early communications with folks like Janko Hauser and Nathan Gray, who graciously offered their codes to get the first “real” IPython off the ground, nor the interactions with the late John Hunter in 2002 around matlab-style syntax in my Gnuplot.py support, that led him to starting matplotlib… But after a few frantic weeks of work, December 9 2001 was the first public announcement of IPython 0.2.0.
It’s kind of fun to read that email now, 20 years later - so much has changed, and yet, there are nuggets of the core of that message that, for better or worse, remain very much alive
The key thing that has changed is the amazing community we have now! Thanks to Matthias, and to all of you who have turned that first, tentative, idea into all that is today the Jupyter project and community.