Скачать или смотреть How to Ensure Your Python Script Only Sends New Results Every 10 Minutes

Discover how to modify your `Python` script to check for changes and avoid duplicate SMS notifications using `Twilio` in a simple, user-friendly way.
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This video is based on the question https://stackoverflow.com/q/64538263/ asked by the user 'TMC FAMILY' ( https://stackoverflow.com/u/14436663/ ) and on the answer https://stackoverflow.com/a/64538440/ provided by the user 'Alexander Riedel' ( https://stackoverflow.com/u/11951277/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Streamlining Your Python Script: Avoiding Duplicate SMS Messages

If you're dabbling in programming and looking to automate some processes, you've likely faced challenges. One common situation is receiving duplicate notifications from automated scripts. In this guide, we'll explore how to modify a Python script so that it only sends SMS notifications when there's a change in data—specifically, checking campsite availability using Twilio.

The Problem

Imagine you’re using Twilio to receive SMS updates about campsite availability, but your script runs every 10 minutes and sends you the same message each time there's no change. Not only is this overwhelming, but it can also lead to missed opportunities if you don’t receive notifications for new updates.

How can you modify your script so that it checks for changes in campsite availability and only sends notifications when there's a difference? The good news is that it’s possible!

Understanding the Solution

Key Concepts

Data Retrieval: We’ll fetch the data from a specified URL.

Data Comparison: We’ll check if the new data is the same as the previous data.

Notification Logic: We’ll implement logic to only print new results or indicate if there are no changes.

Step-by-Step Breakdown

Here’s a modified version of your script that implements these ideas.

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Data Fetching: The main() function fetches the campsite data using the requests library in a loop for various unit IDs.

DataFrame Creation: We create a Pandas DataFrame to structure our results efficiently.

Filtering: The script filters to show only the free and non-walk-in campsites and modifies IDs to more readable site names.

Comparison Logic:

The program runs in an infinite loop (while True:), calling the main() function to retrieve and format the data.

It compares the new data (res) to the previous data (res_before). If they differ, it prints the new results. If they're the same, it simply states "nothing changed."

Time Management: After each iteration, the script will pause for 10 minutes (time.sleep(600)).

Conclusion

With these modifications, you can effectively manage notifications from your Python script without overwhelming yourself with the same messages repeatedly. By comparing the results every 10 minutes and only printing new data, you stay informed about relevant changes without redundancy.

This approach makes your hobby project more efficient and user-friendly as you explore the world of programming. Happy coding!