csv module python3.1

Im using the following in Python2.x ;

import csv
f = open('test.csv', 'wb')
writer = csv.writer(f)
writer.writerow((fpath, md5sum, size)) # <str>, <str>, <int>

This works without any problems. However, when I run this in Python3, I get a TypeError.

writer.writerow((fpath, md5sum, size))
TypeError: write() argument 1 must be bytes or buffer, not str

Of course, writing out the data to a file in opened in non-binary mode would do the trick, but I like the way U开发者_开发百科nicode is handled in Py3 and wish to specifically encode data before writing to a file and decode it when reading from it.

How do I solve this problem?

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f = open('test.csv', 'w', encoding='utf-8', newline='')