[stefano]

App engine still only supports python 2.7 in the standard environment...

[m45t3r]

It seems to support Python 3 (3.5.4): https://cloud.google.com/appengine/docs/flexible/python/runt...

Support exists at least since August 2016: https://cloudplatform.googleblog.com/2016/08/python-3-on-Goo...

[ameliaquining]

Flexible environment only. This matters because the standard environment's pricing structure is a lot better for apps that go significant periods without much traffic, or that have spiky traffic patterns that necessitate fast scaling.

[keganunderwood]

What prevents Google from offering Python3 support in standard environment? Is this a business decision?

[ameliaquining]

It's on the roadmap and there's a public statement that it'll ship next year.

[fish_fan]

App engine is a niche environment.