Purpose: to delete collection records / documents in the database. Suppose the collection name is my_collection. 
Method used: delete_one () or delete_many ()

• Delete all documents that match the condition . The following operation deletes all documents matching the specified condition.

   result = my_collection.delete_many ({"name": "Mr. Geek"}) 

• To see the number of deleted documents :

   print (result.deleted_count) 

• Delete all documents:
  Method 1: delete all documents using delete_many ()

   result = my_collection.delete_many ({}) 

  Method 2: delete all documents using collection.remove ()

   result = my_collection.remove () 

  The best way to remove is to remove the collection so that the data indices are also removed, then create a new collection in that insert data.

• To drop the collection:

   db.my_collection.drop () 

First we insert the document into the collection, then we drop the documents as requested.

# Python program for and illustrations # remove, remove and remove from pymongo import MongoClient   try : conn = MongoClient () print ( "Connected successfully !!!" ) except :  print ( " Could not connect to MongoDB " )    # database db = conn.database   # Created or switched to collection names: my_gfg_collection collection = db.my_gfg_collection   emp_rec1 = { "name" : "Mr. Geek" , "eid" : 24 , "location " : " delhi "   } emp_rec2 = { "name" : "Mr.Shaurya" , "eid" : 14 , "location" : "delhi" } emp_rec3 = { "name" : "Mr.Coder" , "eid" : 14 , "location" : "gurugram" }    # Paste data rec_id1 = collection.insert_one (emp_rec1) rec_id2 = collection.insert_one (emp_rec2) rec_id3 = collection.insert_one (emp_rec3) print ( " Data inserted with record ids " , rec_id1 , "" , rec_id2, rec_id3)   # Print document before deletion cursor = collection.find () for record in cursor: print (record)    # Delete document named: Mr Coder result = collection.delete_one ({ "name" : "Mr.Coder" })   # If the request were deleted, all posts with eid: 14 # use this # result = collection.delete_many (& quot; eid & quot ;: 14})   cursor = collection.find () for record in cursor: print ( record)

 OUTPUT (comment line denoted by #) Connected successfully !!! Data inserted with record ids #Data INSERT {`_id`: ObjectId (` 5a02227c37b8552becf5ed2b`), `name`:` Mr.GfG`, `eid`: 45,` location`: `noida`} {` _id`: ObjectId (`5a0c734937b8551c1cd03349`),` name`: `Mr.Shaurya`,` eid`: 14, `location`:` delhi`} {`_id`: ObjectId (` 5a0c734937b8551c1cd0334a`), `name`:` Mr.Coder `,` eid`: 14, `location`:` gurugram`} # Mr.Coder is deleted {`_id`: ObjectId (` 5a02227c37b8552becf5ed2b`), `name`:` Mr.GfG`, `eid`: 45, `location`:` noida`} {`_id`: ObjectId (` 5a0c734937b8551c1cd03349`), `name`:` Mr.Shaurya`, `eid`: 14,` location`: `delhi`}