Before you start, ensure you have Python and MongoDB installed on your system. Python will be used for fetching and parsing the RSS feed, while MongoDB will be the destination for storing the extracted data. Verify Python by running `python --version` and MongoDB by running `mongod --version` in your terminal or command prompt.

Use Python�s built-in XML parsing library to read the RSS feed. You can use `xml.etree.ElementTree` for this purpose. Fetch the RSS feed using a library like `requests` to retrieve the feed data. Parse the XML structure to extract the necessary elements, such as titles, links, dates, and descriptions.
```python
import requests
import xml.etree.ElementTree as ET
response = requests.get('http://example.com/rss')
root = ET.fromstring(response.content)
for item in root.findall('./channel/item'):
title = item.find('title').text
link = item.find('link').text
date = item.find('pubDate').text
description = item.find('description').text
```

Convert the parsed RSS feed data into a JSON-like structure (Python dictionaries). This format is compatible with MongoDB documents. Ensure each RSS item is represented as a dictionary with keys corresponding to the fields you extracted.
```python
rss_data = []
for item in root.findall('./channel/item'):
rss_data.append({
'title': item.find('title').text,
'link': item.find('link').text,
'pubDate': item.find('pubDate').text,
'description': item.find('description').text
})
```

Use the `pymongo` library to connect to your MongoDB instance. Ensure MongoDB is running on your local machine or accessible via a network. Establish a connection and select the database and collection where you want to store the RSS data.
```python
from pymongo import MongoClient
client = MongoClient('mongodb://localhost:27017/')
db = client['rss_database']
collection = db['rss_feed']
```

Use the `insert_many` method of the MongoDB collection to insert the list of dictionaries (RSS data) into the collection. This method handles the insertion of multiple documents at once.
```python
if rss_data:
collection.insert_many(rss_data)
```

Check the MongoDB collection to verify that the data has been inserted correctly. You can query the collection and print the documents to ensure they match the RSS feed data.
```python
for document in collection.find():
print(document)
```

If you need to regularly update your MongoDB with new RSS feed data, consider setting up a cron job (on Unix-like systems) or Task Scheduler (on Windows) to run your Python script at scheduled intervals. This will automate the fetching, parsing, and storing of RSS data into MongoDB.
By following these steps, you can efficiently move data from an RSS feed to a MongoDB database without relying on third-party connectors or integrations.