将cvs文件读取到Dictionary python

Question

Please, I need to read CSV file and convert the result to a dictionary.

File input:

The required object after reading like below:

defaultdict(<type 'dict'>, {‘Book’: {‘Book’: 1.0, ‘Afnan’: 0, ‘Location’: 0, ‘Love’: 0}, ‘Afnan’: {‘Book’: 0, ‘Afnan’: 1.0, ‘Location’: 0.71, ‘Love’: 0}, ‘Location’: {‘Book’: 0, 'Afnan’: 0.71, ‘Location’: 1.0, ‘Love’: 0}, ‘Love’: {‘Book’: 0, ‘Afnan’: 0, ‘Location’: 0, ‘Love’: 1.0}})

I write below code but is not working as what I want. Please help.

reader = unicode_csv_reader(open('cos3.csv'))
x=list(reader)
for i in x:
    if isinstance(i,float):
        arr=np.array(x).astype('float')
    else:
        arr=np.array(x).astype('string')
d=defaultdict(dict)
for a in arr:
    for b in arr:
        d[a][b]=arr(a)

Answer 1

I always use csv.DictReader and then build the dictionary in the format you want like so:

import csv
import os
cwd = os.getcwd()


d_out = {}
with open(cwd+'\\example.csv', 'rb') as file_in:
    reader = csv.DictReader(file_in, restkey=None, restval=None, dialect='excel')
    for row in reader:
        d_out.setdefault(row['Key'], {'Book':row['Book'], 'Afnan':row['Afnan'], 'Location':row['Location'], 'Love':row['Love']})


print d_out

Hope this helps!