How to run raw mongodb commands from pymongo

Question

In a mongo command line I can run

db.my_collection.stats()

I need to get my collections stats from Python so I tried

from pymongo import MongoClient

client = MongoClient()
db = client.test_database

collection = db.test_collection

collection.stats()

But I get

TypeError: 'Collection' object is not callable. 
If you meant to call the 'stats' method on a 'Collection' object it is failing because no such method exists.

This is because pymongo does not support this method. How do I send raw mongoDB commands to mongo through Python?

score 17 · Accepted Answer · edited Dec 14 '18 at 17:27

17

from pymongo import MongoClient

client = MongoClient()

db = client.test_database

print(db.command("collstats", "test_collection"))

edited Dec 14 '18 at 17:27

radtek

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answered Dec 04 '14 at 16:00

Chris Nilsson

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for passing scale (since all sizes are given in bytes) you can do this: `db.command("collstats", "test_collection", scale=1024*1024)`. This will convert into MB. You can also also change it up as you like for KB, GB, etc. However, `avgObjSize` will always be in `bytes`. – raghavsikaria Jun 30 '22 at 11:47

wolendranh · Answer 2 · 2018-04-11T12:50:48.410

Approach 1 with PyMongo:

client = pymongo.MongoClient(host = "127.0.0.1", port = 27017)
db = client.test_database
db.command("dbstats") # prints database stats for "test_db"
db.command("collstats", "test_collection") # prints collection-level stats

This can be done with this approach in Django.

    from django.db import connections

    database_wrapper = connections['my_db_alias']
    eggs_collection = database_wrapper.get_collection('eggs')
    eggs_collection.find_and_modify(...)

From django-mongodb-engine docs:

django.db.connections is a dictionary-like object that holds all database connections – that is, for MongoDB databases, django_mongodb_engine.base.DatabaseWrapper instances.

These instances can be used to get the PyMongo-level Connection, Database and Collection objects.

How to run raw mongodb commands from pymongo

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