3 回答
TA贡献1775条经验 获得超8个赞
inp = [('IND', 'MIA', '05/30'), ('ND', '07/30'), ('UNA', 'ONA', '100'), \
('LAA', 'SUN', '05/30'), ('AA', 'SN', '07/29'), ('UAA', 'AAN')]
result = {}
for i in range(0, len(inp), 3):
item = inp[i]
result[item[0]+","+item[1]] = inp[i:i+3]
print (result)
Dict理解解决方案是可能的,但有些混乱。
要从阵列中删除键,请用替换第二条循环线(result[item[0]+ ...)
result[item[0]+","+item[1]] = [item[2:]]+inp[i+1:i+3]
Dict理解解决方案(比我最初想象的要少一些混乱:)
rslt = {
inp[i][0]+", "+inp[i][1]: inp[i:i+3]
for i in range(0, len(inp), 3)
}
TA贡献1779条经验 获得超6个赞
使用itertools grouper配方:
from itertools import izip_longest
def grouper(iterable, n, fillvalue=None):
"Collect data into fixed-length chunks or blocks"
# grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx
args = [iter(iterable)] * n
return izip_longest(fillvalue=fillvalue, *args)
{', '.join(g[0][:2]): g for g in grouper(inputlist, 3)}
应该做。
该grouper()方法一次给我们一组3个元组。
也从字典值中删除键值:
{', '.join(g[0][:2]): (g[0][2:],) + g[1:] for g in grouper(inputlist, 3)}
您输入的演示:
>>> from pprint import pprint
>>> pprint({', '.join(g[0][:2]): g for g in grouper(inputlist, 3)})
{'IND, MIA': (('IND', 'MIA', '05/30'), ('ND', '07/30'), ('UNA', 'ONA', '100')),
'LAA, SUN': (('LAA', 'SUN', '05/30'), ('AA', 'SN', '07/29'), ('UAA', 'AAN'))}
>>> pprint({', '.join(g[0][:2]): (g[0][2:],) + g[1:] for g in grouper(inputlist, 3)})
{'IND, MIA': (('05/30',), ('ND', '07/30'), ('UNA', 'ONA', '100')),
'LAA, SUN': (('05/30',), ('AA', 'SN', '07/29'), ('UAA', 'AAN'))}
TA贡献1828条经验 获得超4个赞
from collections import defaultdict
def solve(lis, skip = 0):
dic = defaultdict(list)
it = iter(lis) # create an iterator
for elem in it:
key = ", ".join(elem[:2]) # create key
dic[key].append(elem)
for elem in xrange(skip): # append the next two items to the
dic[key].append(next(it)) # dic as skip =2
print dic
solve([('IND', 'MIA', '05/30'), ('ND', '07/30'), ('UNA', 'ONA', '100'), \
('LAA', 'SUN', '05/30'), ('AA', 'SN', '07/29'), ('UAA', 'AAN')], skip = 2)
输出:
defaultdict(<type 'list'>,
{'LAA, SUN': [('LAA', 'SUN', '05/30'), ('AA', 'SN', '07/29'), ('UAA', 'AAN')],
'IND, MIA': [('IND', 'MIA', '05/30'), ('ND', '07/30'), ('UNA', 'ONA', '100')]
})
添加回答
举报