Raspberry Pi: Detect Multiple Barcodes in Python

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I work on a project where I have one Raspberry Pi 3 and a webcam. I try to write a Python script, which can detect at least 1 and maximum 4 barcodes at the same time and send all collected data from the barcodes to scanned.txt.

Is there any way to do it using Python on the Raspberry Pi? What are your thoughts/suggestions?

Thank you in advance!

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