有没有一种方法可以将字典作为python中的熊猫数据框的入口？

Question

Something like:

d={'a':1, 'b'=2}
data=pandas.DataFrame()
data['new column'] = d
data['new column'][0]

where the last command will return the dictionary d?

Answer 1

You can wrap the dictionary in a list, so that the dictionary will be treated as an element instead of an iterable:

d={'a':1, 'b': 2}
data=pd.DataFrame()
data['new column'] = [d]
data['new column'][0]

# {'a': 1, 'b': 2}

Answer 2

Convert it to string, in case you need to store in a db. If you wrap it in a list, you won't be able to query it.

dic={'key':1}
df=pd.DataFrame()
df['a'][1] = str(dic)