你可以这样做：

import csv

# note: If you use 'b' for the mode, you will get a TypeError
# under Python3. You can just use 'w' for Python 3

data=[('smith, bob',2),('carol',3),('ted',4),('alice',5)]

with open('ur file.csv','wb') as out:
    csv_out=csv.writer(out)
    csv_out.writerow(['name','num'])
    for row in data:
        csv_out.writerow(row)

    # You can also do csv_out.writerows(data) instead of the for loop

输出文件将包含：

name,num
"smith, bob",2
carol,3
ted,4
alice,5