Pinterest bulk upload: 200 Pins per CSV with Sume media URLs

Pinterest's bulk tool takes up to 200 images or videos per upload from a CSV. Title, Media URL and Pinterest board are required, and the Media URL must be a publicly available link to the file itself. Sume renders return durable media.sume.com URLs, so they can fill that column once the jobs finish.

Which CSV columns matter?

The bulk upload page splits the columns into required and optional.

How do I write the CSV from finished jobs?

This sample builds the CSV from a list of results. The URLs are placeholders for the video_url values your finished Sume jobs return.

import csv, sys

jobs = [("Summer clip", "https://media.sume.com/artifacts/artf_demo/a.mp4"),
        ("Autumn clip", "https://media.sume.com/artifacts/artf_demo/b.mp4")]
w = csv.writer(sys.stdout)
w.writerow(["Title", "Media URL", "Pinterest board", "Thumbnail"])
for title, url in jobs[:200]:
    w.writerow([title[:100], url, "My board", "00:01"])

Why do Sume URLs fit the rule?

The Sume docs say media URLs from completed jobs are durable media.sume.com HTTPS URLs that do not expire, so the link stays valid for as long as Pinterest needs to fetch it. Verify one by opening it in a signed-out browser before you upload the whole batch.