Python 3 gist to grab the number of currently running builds in our CircleCI

circleci_queued_builds.py

from collections import defaultdict
import datetime
from circleci.api import Api


TIMESTAMP_FORMAT = '%Y-%m-%dT%H:%M:%S.%fZ'

circleci = Api("<your api key>")

build_summaries = circleci.get_project_build_summary(
    '<project username>',
    '<project>',
    vcs_type='bitbucket',
    limit=100,
)

counts = defaultdict(int)
queue_times = []
for build in build_summaries:
    if build['status'] in ('running', 'not_running'):
        counts[build['status']] = counts[build['status']] + 1

    if build['status'] != 'canceled':
        if build['usage_queued_at'] and build['start_time']:
            queued_at = datetime.datetime.strptime(
                build['usage_queued_at'],
                TIMESTAMP_FORMAT,
            )
            start_time = datetime.datetime.strptime(
                build['start_time'],
                TIMESTAMP_FORMAT,
            )

            queue_times.append(start_time - queued_at)

average_queue_time = sum(queue_times, datetime.timedelta()) / len(queue_times)

print(f'Average Queue Time: {average_queue_time}')
print(f'Running: {counts["running"]}')
print(f'Queued: {counts["not_running"]}')