bpo-27497: Add return value to csv.DictWriter.writeheader (GH-12306)

csv.DictWriter.writeheader() now returns the return value of the
underlying csv.Writer.writerow() method.

Patch contributed by Ashish Nitin Patil.

Rémi Lapeyre committed 7y ago

fce5ff1e18b522cf52379934a6560583d840e7f9

Parent: d237b3f

Committed by Victor Stinner <[email protected]> on 5/10/2019, 1:50:11 AM