[toma7]

The OP did not say it would "kill" Python, just that it would cripple it. Personally with bloomberg bringing out a Python2.7 financial module first, no 3.x support, the entire financial world is now also poised to stay on 2.7. That's a classic example: bloomberg only published this Python binding 6 months ago! no Python 3.0 for them.

[enscr]

I was referring to the title : "Python 3 is killing Python"

Anyway, it's a well known fact that 2to3 switch has tremendous inertia. Space, Medical, Finance are few of the applications where often old is gold (tried & trusted). What bloomberg did was logical, no surprise there. That decision adds little value to how Python 3 is impacting the growth of Python.

[toma7]

It is tremendously detrimental when a deprecated technology has all the inertia, because it is a dead end thanks to the Python bosses refusing to move it forward. Every new package for 2.7 (and no this is not old gold - this is a brand new library for access to Bloomberg's massive and uber-valuable database), every new package that invites more people into a dead end, encourages those people to look much wider (beyond Python) when needing to upgrade. Python 3 may be growing in absolute terms, but in relative terms it's a absolute dog compared with its competitors, including Python 2. Python 3 in its current form is doing everybody a huge disservice.