将列表放入csv

Question

I have a list in Python 3. I want to split a list [1,2,3,4,5,6,7,8] to [1,2,3,4] in one row and [5,6,7,8] the other. I am currently using this to write to CSV however I am doing the split manually and there will be a blank cell after it writes not sure how to get rid of it that's another problem also

outfile = open('list.csv','w')
out = csv.writer(outfile)
out.writerows(map(lambda x: [x],list))
outfile.close()

Answer 1

Try this:

outfile = open('list.csv', 'w', newline='')
out = csv.writer(outfile)
out.writerows([list[i:i+4] for i in range(0, len(list), 4)])
outfile.close()

Or with with open :

with open('list.csv', 'w', newline='') as outfile:
    out = csv.writer(outfile)
    out.writerows([list[i:i+4] for i in range(0, len(list), 4)])

Answer 2

import csv 
a = [1, 2, 3, 4, 5, 6, 7, 8]

with open('test.csv', 'w', newline='') as fout:
    w = csv.writer(fout)
    w.writerow(a[:4])
    w.writerow(a[4:])