Earlier quoted context omitted.
LinkedIN is a Java/Scala shop. Other than Dropbox (well, technically they seem to move toward Go/Rust? for core critical infrastructure), I rarely see medium to big scal projects using largely Python. Instagram, while uses Python, is relatively small size shop/group of people. I don't know well how big pinterest/eventbrite. Some BigCos are using Python for less important projects (scratching their itch maybe?) I don'…
Maybe you look at the false examples :) http://www.cisco.com/c/en/us/about/corporate-strategy-office... = Cisco Web & Email Security The Source for the Server is now open source: https://github.com/ironport/shrapnel (python / cython /Pyrex) And disqus had run mainly on Python before they moved some parts to Go-Lang https://github.com/disqus Many Gov's / Edu's run on Plone
No offense to disqus but they are relatively small.
So I believe my statement still holds true.