Python 字典到 .csv 中的特定格式

Question

I have a dictionary in python in this way

 my_dict = {'1':['a','b','c'], '2':['d','e','f']}

and i want to write a csv file in which it is displayed as it follows

1, a b c
2, d e f

because it is parsed by another application in this specific format.

Is there any way to it?

Answer 1

my_dict = {'1':['a','b','c'], '2':['d','e','f']}

from operator import  itemgetter
import csv

with open('data.csv','w') as f:
    a = csv.writer(f, delimiter = ',', lineterminator='\n')
    for k,v in sorted(my_dict.items(), key=itemgetter(0)):
    a.writerow([k,' ' + ' '.join(v)])

data.csv        
1, a b c
2, d e f

Answer 2

This is a way to do it:

my_dict = {'1':['a','b','c'], '2':['d','e','f']}

with open('data.csv', 'w') as f:
    f.write('\n'.join([("%s, %s" % (k,' '.join(my_dict[k]))) for k in my_dict])