An oral history of Bank Python

• kdb

  7 402 4.0 HTML

  Companion files to kdb+ and q

  

• arctic

  52 3,028 7.1 Python

  High performance datastore for time series and tick data

  

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• cinder

  43 3,375 9.4 Python

  Cinder is Meta's internal performance-oriented production version of CPython. (by facebookincubator)

  

Exactly.

Facebook literally maintains a python fork: https://github.com/facebookincubator/cinder

Google invented "NoSQL" before anyone else knew what it was, and all those "cloud" tools are obviously proprietary (except the ones they open sourced). Ex-Googlers I work with typically had to spend quite a bit of time re-adjusting to the "inferior" tools and processes in other companies.

Microsoft invented their own development ecosystem, and the only reason it's "common" or "standard" in the tech community is because they sell it as a product. This is the same for Apple at least for iOS development, and Amazon for their cloud service offerings.

When companies have millions of dollars to spend on maintaining a custom development environment that they think will give them a competitive edge, they will do it. It's the smaller shops that can't afford not to go with the flow, so to speak.

• traitlets

  4 602 7.8 Python

  A lightweight Traits like module

  

> This is loosely the same idea that drives React, ObservableHQ, Kafka, and other event-streaming architectures, but I first encountered this ~15 years ago at a bank.

See also the "observer pattern" [0]. It's a fun exercise to implement a reactive system in Python using the descriptor protocol [1]. IPython's traitlets library is an example of this in the wild [2].

[0]: https://en.wikipedia.org/wiki/Observer_pattern

[1]: https://docs.python.org/3/howto/descriptor.html

[2]: https://github.com/ipython/traitlets

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