insert_many not working when adding one more case - mongodb

Question

I used the following code to insert tab0011.json into portal_db.acs:
from pymongo import MongoClient
import json
client = MongoClient()
db = client.portal_db
db.acs.drop()
acs = db.acs
data_acs = json.load(open('/vagrant/data/tab0011.json', 'r'))
result_acs = acs.insert_many(data_acs)
The code has stored the tab0011.json data correclty. However, I tried the following code to insert tab0011.json into portal_db.acs and tab0007.json into portal_db.tab0007. Both collections were created but with none inside, i.e., empty:
from pymongo import MongoClient
import json
client = MongoClient()
db = client.portal_db
db.acs.drop()
acs = db.acs
db.tab0007.drop()
tab0007 = db.tab0007
data_acs = json.load(open('/vagrant/data/tab0011.json', 'r'))
data_tab0007 = json.load(open('/vagrant/data/tab0007.json', 'r'))
result_acs = acs.insert_many(data_acs)
result_tab0007 = tab0007.insert_many(data_tab0007)
Not quite sure why.

Answer 1

If the file extension is .json I am able to read the data via the methods used in your code and insert them into collections in the same database. I can see the data that I used in both the respective collections
Maybe you can try doing it this way:
from pymongo import MongoClient
import json
client = MongoClient(host="localhost", port=27017)
db = client["portal_db"]
acs = db.get_collection("acs")
tab0007 = db.get_collection("tab0007")
db.drop_collection("acs")
db.drop_collection("tab0007")
data_acs = json.load(open('/vagrant/data/tab0011.json', 'r'))
data_tab0007 = json.load(open('/vagrant/data/tab0007.json', 'r'))
acs_inserts = acs.insert_many(data_acs)
tab_inserts = tab0007.insert_many(data_tab0007)
print(acs_insert.inserted_ids)
print(tab_inserts.inserted_ids)
The last two lines would print the ObjectIds of the Documents inserted.