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To be clear - Pulumi is fundamentally multi-language and will be increasingly so over time. It is very much a goal to be the best option for infrastructure as code for any developer, and we are investing heavily in Python, Go and .NET (as well as TypeScript) and will continue to do so. Feedback always welcome on ways we can continue to improve support for one or multiple of these language ecosystems.

I appreciate your long term goal, however I’m still curious as to why Pulumi decided to focus on Typescript as their first language.

Because static typing that prevents you from shooting yourself in the foot.

also Luke helped make typescript which probably helped a lot with the decision making.

@clever-nest-47198 That makes a lot of sense. For a new startup getting an initial product is one of the most important things, and language expertise means both faster velocity and fewer issues. @white-balloon-205 https://pulumi-community.slack.com/archives/CDE799L1M/p1577382013020200?thread_ts=1577160574.015700&cid=CDE799L1M has me a bit concerned. Will that changing over time or is the structure set in stone?

I have written probably about 10k lines of pulumi python, and the only thing I'll agree with is the apply thing, but thats not really weird if you're used to writing async python

One annoying thing is certain libraries being typescript only first (python-kubernetesx, python-eks), but we've pretty easily recreated the functionality of those libraries in python

FWIW - We are optimistic that we will be able to address this with the work in https://github.com/pulumi/pulumi/pull/3711 (and discussed more high level in https://github.com/pulumi/pulumi/issues/2430).