def flatten(t): return [item for sublist in t for item in sublist]. As evidence, you can use the timeit module in the standard library: $ python -mtimeit ... ... <看更多>

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Any subset of the axes may be flattened. The shape of the data may change, but the size will not. The flattening is executed in row-major (C-style) order. ... <看更多>

Proposals for a flatten function to be added to the standard library appear from time to time on python-dev and python-ideas mailing lists. ... <看更多>

Flatten list in Python 3. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>