python2 : merge a list of csv elements

Question

我有一个这样的字典:

{1: ['1,2,3', '4,5,6', '7,8']}

字典的列表项数量可以是可变的，但始终是 1 个字典项。如何将其合并到

{1: ['1,2,3,4,5,6,7,8']}

？

谢谢

Answer 1

>>> d
{1: ['1,2,3', '4,5,6', '7,8'], 2: ['9,10', '11']}
>>> for k,v in d.iteritems():
...     d[k] = [",".join(v)]
...
>>> d
{1: ['1,2,3,4,5,6,7,8'], 2: ['9,10,11']}