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Learn how to effectively loop through a list of documents and trigger another loop for emails, ensuring one email per document is sent in Python.
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How to Loop Through a List in Python and Send Individual Emails for Each Document

When working with data in Python, especially lists, it’s not uncommon to need to perform nested iterations. A typical scenario is when you have a list of documents that require emailing different recipients based on certain criteria. In this guide, we'll address a specific question: How can I loop through a list and for each distinct value, initiate another loop?

Understanding the Problem

You have a list of documents that have been updated within a specific timeframe, and you want to send an email notification about each document to a list of users. The challenge arises when the code mistakenly sends out bulk emails with details of all documents to each user instead of sending individual emails for each document.

Here’s how you can effectively implement this nested loop structure in Python to achieve your goal of sending one email per address per document.

Solution Breakdown

Step 1: Setup Your Variables

Start by defining the necessary variables, including fetching the list of users and the updated documents. Here's a brief overview of how you can make API calls and build lists:

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Step 2: Implement Nested Loops

Next, create a loop to iterate through the updated documents and a nested loop for the email addresses. The structure of your loops is crucial to ensure that each document is sent to the respective email address without duplication.

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Step 3: Sending the Email

Within this nested structure, you'll want to ensure that you utilize Amazon's Simple Email Service (SES) to send the emails. Each email should properly reflect the specific document and recipient. Ensure proper error handling to catch any issues that arise during the email sending process.

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Conclusion

By effectively setting up nested loops in your Python code, you can ensure precise email notifications are sent out, avoiding duplicate messages to each recipient. This approach offers a clean and maintainable way to process lists and handle multiple actions within your applications.

If you have further questions about looping through lists in Python or any related topics, feel free to reach out in the comments section below!