etls

English | 中文

表格行列转换：真正的转置，以及「行 / 字典列表」互转。

安装

pip install etls

用法

from etls import dicts_to_rows, rows_to_dicts, transpose

transpose([["a", "b"], ["x", 1], ["y", 2]])
# [['a', 'x', 'y'], ['b', 1, 2]]

rows_to_dicts(["a", "b"], [[1, 2]])            # [{'a': 1, 'b': 2}]
dicts_to_rows(["a", "b"], [{"b": 2, "a": 1}])  # [[1, 2]]

说明

transpose 做真正的行列互换，输入必须是矩形，行宽不一致抛 ValueError。rows_to_dicts 与 dicts_to_rows 互为逆操作，字段顺序按 m_headers 固定，不依赖 dict 的插入顺序；缺键抛 KeyError。

许可证

MIT

English

Reshape tables: a true transpose, plus conversion between rows and dicts.

Install

pip install etls

Usage

from etls import dicts_to_rows, rows_to_dicts, transpose

transpose([["a", "b"], ["x", 1], ["y", 2]])
# [['a', 'x', 'y'], ['b', 1, 2]]

rows_to_dicts(["a", "b"], [[1, 2]])            # [{'a': 1, 'b': 2}]
dicts_to_rows(["a", "b"], [{"b": 2, "a": 1}])  # [[1, 2]]

Notes

transpose swaps rows and columns for real; the grid must be rectangular or ValueError is raised. rows_to_dicts and dicts_to_rows are inverses, with column order following m_headers rather than dict insertion order; a missing key raises KeyError.

License

MIT