Batch update a big query based on total and batch quantity

batch_update_process.py

import math
# from b_estimates.models import BEstimate
#
# be_list = BEstimate.objects.all()
be_list = list(range(4934))
# total_count = be_list.count()
total_count = 4934

batch_count = 500
iterations = math.ceil(total_count / batch_count)

for i in list(range(iterations)):
    start = i * batch_count
    if (i == iterations - 1):
        end = start + total_count % batch_count
    else:
        end = (i + 1) * batch_count - 1
    print(start, end)
    # batch = be_list[i * batch_count]