问题
I have a list of tuples, some of which are nested:
[(name,(6,9.0,2.4),link),(name,(7.8,9.0,5),link)...]
I would like to un-nest the inner tuple for each item in the list, but preserve the outer tuple:
[(name,6,9.0,2.4,link),(name,7.8,9.0,5,link)...]
This is different from the solution to the question posed here in which the solution sought to preserve the pairs.
回答1:
Given
lst = [('xyz',(6,9.0,2.4),'link1'),('abc',(7.8,9.0,5),'link2')]
Iterate over lst and unpack the inner tuples into the outer tuples. You can do this with a list comprehension.
>>> [(x, *y, z) for x, y, z in lst]
[('xyz', 6, 9.0, 2.4, 'link1'), ('abc', 7.8, 9.0, 5, 'link2')]
Works on python3.6. For older versions, use tuple concatenation:
>>> [(x,) + y + (z,) for x, y, z in lst]
[('xyz', 6, 9.0, 2.4, 'link1'), ('abc', 7.8, 9.0, 5, 'link2')]
来源：https://stackoverflow.com/questions/52573594/flatten-nested-tuples