Python 3.15 introduces an immutable or ‘frozen’ dictionary that is useful in places ordinary dicts can’t be used.
hz: 杭州, sz: 深圳, dl: 大连, fs: 佛山 xm: 厦门, dg: 东莞, gz: 广州, bj: 北京 cd: 成都, sy: 沈阳, jn: 济南, sh: 上海 tj: 天津, qd: 青岛 ...
This repository contains the source material, code, and data for the book, Computational Methods for Economists using Python, by Richard W. Evans (2023). This book is freely available online as an ...
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