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>

Flatten JSON in Python. Contribute to amirziai/flatten development by creating an account on GitHub. ... <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>