python -如何从excel中获取具有单个值的多个键

I have a excel sheet i.e,

我有一张excel表格，

   0 first     |second    |third      |root
   1 credible  |credulous |credibility|cred
   2 cryptogram|cryptology|cryptic    |crypt
   3 aquatic   |aquarium  |aqueduct   |aqua

i want to import key and value for dictionary from above mentioned excel sheet:
for example: i have written a dictionary code for storing this values

我想从上面提到的excel表中导入关键字和值，例如:我编写了一个用于存储这些值的字典代码。

   new_dict = {
    ('credible','credulous','credibility') : 'cred',
    ('cryptogram','cryptology','cryptic')   : 'crypt'
    }

so instead of writing key and value for each word in dictionary i want to import from excel where first 3 column(i.e first,second,third) should be the key and last column(i.e root) will be the value of a dictionary. Is it possible to do that?
sorry for my English.
Thanks

因此，我不需要为字典中的每个词编写键和值，而是要从excel中导入，其中第一列为i。e first、second、third应该是键和最后一列(i)。e根)将是字典的值。有可能吗?对不起,我的英语。谢谢

2 个解决方案

#1

Use set_index to set the index for every column (first three, in this case) besides the root, and then call root.to_dict:

使用set_index为除根外的每一列(本例中为前三列)设置索引，然后调用root.to_dict:

df.set_index(df.columns.difference(['root']).tolist()).root.to_dict() 
{
    ('aquatic', 'aquarium', 'aqueduct')      : 'aqua',
    ('credible', 'credulous', 'credibility') : 'cred',
    ('cryptogram', 'cryptology', 'cryptic')  : 'crypt'
}

#2

Use set_index by first 3 columns with Series.to_dict:

使用set_index前3列包含Series.to_dict:

d = df.set_index(['first','second','third'])['root'].to_dict()
print (d)
{('credible', 'credulous', 'credibility'): 'cred',
 ('aquatic', 'aquarium', 'aqueduct'): 'aqua', 
 ('cryptogram', 'cryptology', 'cryptic'): 'crypt'}

#1