python crear diccionario de csv
mydict = {y[0]: y[1] for y in [x.split(",") for x in open('file.csv').read().split('\n') if x]}
csv de la biblioteca de python convertir dict a csv
import csv
my_dict = {'1': 'aaa', '2': 'bbb', '3': 'ccc'}
with open('test.csv', 'w') as f:
for key in my_dict.keys():
f.write("%s,%s\n"%(key,my_dict[key]))