collection_1.py

# create weekly demand collection
database.create_collection("weekly_demand")

collection_2.py

# get collection weekly_demand
weekly_demand_collection = database.get_collection("weekly_demand")

# open the weekly_demand json file
with open("weekly_demand.json") as f:
    file_data = json.load(f)
# insert the data into the collection
weekly_demand_collection.insert_many(file_data)

# get the count of total data points
weekly_demand_collection.find().count()
# >> 456548