Gather unknown versions from web-platform-compat MDN import

unknown_versions.py

#!/usr/bin/env python
"""Gather the unknown versions from a web-platform-compat MDN import

This assumes that data/import_issues_by_url.csv has been generated by
running tools/gather_import_issues.py.

The output is csv data that could be redirected to a file.
"""

import csv
import json
import sys

csv.field_size_limit(sys.maxsize)

version = []
with open('data/import_issues_by_url.csv') as f:
    csv_reader = csv.reader(f)
    first = True
    for row in csv_reader:
        if first:
            first = False
            continue
        slug, url, issue, start, end, raw_params = row
        params = json.loads(raw_params)
        if issue == 'unknown_version':
            version.append((
                str(params['browser_id']), params['browser_slug'],
                params['version']))

for v in version:
    print ",".join(v)