Open Source
An oral history of Bank Python surveys a hypothetical bank-centric Python ecosystem, detailing components like Barbara (a global key-value store), Dagger (an asset-pricing graph), Walpole (a bank-wide job runner), and MnTable (a proprietary table library). The piece critiques proprietary banking tooling, contrasts it with open-source Python norms, and discusses data-first architectures, in-house IDEs, and the evolution of financial software.