Python列表理解以加入列表列表
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时间：2020-08-18 12:29:44 来源:igfitidea点击:
Python list comprehension to join list of lists
提问by congusbongus
Given lists = [['hello'], ['world', 'foo', 'bar']]
给定的 lists = [['hello'], ['world', 'foo', 'bar']]
How do I transform that into a single list of strings?
如何将其转换为单个字符串列表？
combinedLists = ['hello', 'world', 'foo', 'bar']
combinedLists = ['hello', 'world', 'foo', 'bar']
采纳答案by Nicolas
lists = [['hello'], ['world', 'foo', 'bar']]
combined = [item for sublist in lists for item in sublist]
Or:
或者：
import itertools
lists = [['hello'], ['world', 'foo', 'bar']]
combined = list(itertools.chain.from_iterable(lists))
回答by akira
from itertools import chain
combined = [['hello'], ['world', 'foo', 'bar']]
single = [i for i in chain.from_iterable(combined)]
