<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Jan 8, 2015 at 2:08 PM, Brian Granger <span dir="ltr"><<a href="mailto:ellisonbg@gmail.com" target="_blank">ellisonbg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">* We estimate that the total ipython user base is in the 0.5-1.5 million range. However, this is likely a very conservative estimate. Fernando has the best summary of where we get these estimates (I don't remember where the most recent information is - probably in a private email to someone). </blockquote></div><br>This is how I most recently answered the question "what is the impact and user base of IPython", indeed in the context of a private email as part of the EU Sage-math grant proposal:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_extra"><br>Getting metrics for usage is very tough, but we have some information. You can read the report we wrote early this year for Sloan, that provides a bunch of info (notebook and PDF format):</div><div class="gmail_extra"><br></div><div class="gmail_extra"><a href="http://nbviewer.ipython.org/github/ipython/sloan-2013-reports/blob/master/IPython%202013%20Progress%20Report%20-%20Sloan%20Foundation.ipynb" target="_blank">http://nbviewer.ipython.org/github/ipython/sloan-2013-reports/blob/master/IPython%202013%20Progress%20Report%20-%20Sloan%20Foundation.ipynb</a><br></div><div class="gmail_extra"><br></div><div class="gmail_extra"><a href="http://archive.ipython.org/sloan-2013-reports/IPython%202013%20Progress%20Report%20-%20Sloan%20Foundation.pdf" target="_blank">http://archive.ipython.org/sloan-2013-reports/IPython%202013%20Progress%20Report%20-%20Sloan%20Foundation.pdf</a><br></div><div class="gmail_extra"><br></div><div class="gmail_extra">As you can see, rather than a single blurb of download stats, we paint a more complex (but I think richer) picture of broad usage and impact.  A few more things since:</div><div class="gmail_extra"><br></div><div class="gmail_extra">- Recently highlighted in the cover of Nature:</div><div class="gmail_extra"><br></div><div class="gmail_extra"><div class="gmail_extra" style="font-size:16px"><a href="http://www.nature.com/news/interactive-notebooks-sharing-the-code-1.16261" target="_blank">http://www.nature.com/news/interactive-notebooks-sharing-the-code-1.16261</a></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">and that article links to a live, interactive demo here:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="http://www.nature.com/news/ipython-interactive-demo-7.21492" target="_blank">http://www.nature.com/news/ipython-interactive-demo-7.21492</a></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">This demo broke readership records for Nature, to the best of our understanding (we blew past the estimates the editors gave us in terms of highest numbers of simultaneous readers to expect).</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">- The NBviewer site has very significant usage, these are the Google Analytics numbers for the period Nov 8, 2014-Dec 8, 2014<span style="white-space:pre-wrap">:</span></div><div style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><div style="border-bottom-width:0px;border-bottom-style:none;border-right-width:1px;border-right-style:solid;border-right-color:rgb(203,203,203);margin:15px 0px 10px 10px;width:180px;display:inline-block;color:rgb(0,0,0);font-size:13px"><div style="font-size:13px;margin:0px;color:rgb(34,34,34)">Sessions</div><div style="margin:5px auto;display:inline-block"><div style="color:rgb(34,34,34);font-size:24px;max-width:160px;min-width:65px;word-wrap:break-word">423,334</div><div style="border-color:rgb(255,255,255);border-style:solid;border-width:1px 2px 2px 1px;float:left;margin-right:10px"><img src="https://chart.googleapis.com/chart?cht=ls&chs=170x18&chco=e6f2fa%2C058DC7&chm=b%2Ce6f2fa%2C0%2C1%2C0&chd=e%3AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%2CalgitNqFrlrNjNYpeIuGuZtWzEllZ6ezsZ..vvoaf5ZoeetYuEtIr3mqZUeGqw" width="170" height="18" class=""></div></div></div><div style="border-bottom-width:0px;border-bottom-style:none;border-right-width:1px;border-right-style:solid;border-right-color:rgb(203,203,203);margin:15px 0px 10px 10px;width:180px;display:inline-block;color:rgb(0,0,0);font-size:13px"><div style="font-size:13px;margin:0px;color:rgb(34,34,34)">Users</div><div style="margin:5px auto;display:inline-block"><div style="color:rgb(34,34,34);font-size:24px;max-width:160px;min-width:65px;word-wrap:break-word">215,546</div><div style="border-color:rgb(255,255,255);border-style:solid;border-width:1px 2px 2px 1px;float:left;margin-right:10px"><img src="https://chart.googleapis.com/chart?cht=ls&chs=170x18&chco=e6f2fa%2C058DC7&chm=b%2Ce6f2fa%2C0%2C1%2C0&chd=e%3AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%2CYJd1pRmfn6n8gkWccEqbq5pnwgjNXjb1og..tvmneGXZcbqCqjqDonkSXPbzng" width="170" height="18" class=""></div></div></div><div style="border-bottom-width:0px;border-bottom-style:none;border-right-width:1px;border-right-style:solid;border-right-color:rgb(203,203,203);margin:15px 0px 10px 10px;width:180px;display:inline-block;color:rgb(0,0,0);font-size:13px"><div style="font-size:13px;margin:0px;color:rgb(34,34,34)">Pageviews</div><div style="margin:5px auto;display:inline-block"><div style="color:rgb(34,34,34);font-size:24px;max-width:160px;min-width:65px;word-wrap:break-word">844,523</div><div style="border-color:rgb(255,255,255);border-style:solid;border-width:1px 2px 2px 1px;float:left;margin-right:10px"><img src="https://chart.googleapis.com/chart?cht=ls&chs=170x18&chco=e6f2fa%2C058DC7&chm=b%2Ce6f2fa%2C0%2C1%2C0&chd=e%3AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%2CgNlB1Hziz60nq3d4kS2P3T1W6au5gNm711..z6rNkkeZjS1h2nzU0FtqfTjexM" width="170" height="18" class=""></div></div></div></div><div class="gmail_extra" style="font-size:16px">That's almost 1 million page views for people sharing content as IPython notebooks (that's the only purpose of that site).</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">- Our Gallery of notebooks is a good showcase of the breadth of usage and impact of the notebook across domains:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="https://github.com/ipython/ipython/wiki/A-gallery-of-interesting-IPython-Notebooks" target="_blank">https://github.com/ipython/ipython/wiki/A-gallery-of-interesting-IPython-Notebooks</a><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">- This list shows the adoption of our kernel architecture across languages: 23 independent implementations and counting, meaning this system is becoming the lingua franca of interactive computing:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="https://github.com/ipython/ipython/wiki/IPython-kernels-for-other-languages" target="_blank">https://github.com/ipython/ipython/wiki/IPython-kernels-for-other-languages</a><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">- Here is a list of other projects (in academia and industry) using IPython:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="https://github.com/ipython/ipython/wiki/Projects-using-IPython" target="_blank">https://github.com/ipython/ipython/wiki/Projects-using-IPython</a><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">- It's very hard to get accurate user counts, but we *estimate* at least ~2 Million users.  This is a rough estimate, but I think realistic (and if anything, a conservative undercount). The estimate goes as follows:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">a) Estimates of linux users (not datacenter servers) range from 20M for Ubuntu to ~70M across distros:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="http://en.wikipedia.org/wiki/Ubuntu_(operating_system)#Installed_base" target="_blank">http://en.wikipedia.org/wiki/Ubuntu_(operating_system)#Installed_base</a><br></div><div class="gmail_extra" style="font-size:16px"><a href="http://en.wikipedia.org/wiki/Linux_adoption#Measuring_desktop_adoption" target="_blank">http://en.wikipedia.org/wiki/Linux_adoption#Measuring_desktop_adoption</a><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">b) The Debian '<span class="">popcon</span>' statistics:</div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px"><a href="https://qa.debian.org/popcon.php?package=ipython" target="_blank">https://qa.debian.org/<span class="">popcon</span>.php?package=ipython</a><br></div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">show IPython to be installed on ~ 5% of Debian installs. </div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">If we use that as a baseline, and estimate total linux user counts at say ~50M (rough average of the above two numbers), we get about 2.5M installs of IPython on linux. This doesn't count source installs, pip installs, nor any of the Windows and Mac OSX users who get it via Anaconda, Enthought Canopy, etc.  Nor does it count the increasing number of server-side hosted deployments we see more and more of.  </div><div class="gmail_extra" style="font-size:16px"><br></div><div class="gmail_extra" style="font-size:16px">But at least it gives a credible way to justify that IPython probably has *at least* 2M users.</div><div><br></div></div><br><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Fernando Perez (@fperez_org; <a href="http://fperez.org" target="_blank">http://fperez.org</a>)<br>fperez.net-at-gmail: mailing lists only (I ignore this when swamped!)<br>fernando.perez-at-berkeley: contact me here for any direct mail<br></div>
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