As a seasoned Python programmer with an extensive knowledge of various programming languages, frameworks and environments including PHP and Javascript, I am confident in my ability to repair your Python script and resolve the issue with the PKL files. My solid understanding of the Python language combined with experience using various libraries and technologies such as TensorFlow, Pandas and PyTorch in similar projects, equips me with the necessary skills to handle this task efficiently.
Furthermore, my proficiency in working with data storage systems like MySQL, PostgreSQL and SQLite will enable me to troubleshoot any underlying storage issues that may be causing the script to restart from the beginning. I can also use my expertise with JSON, XML and REST to better understand how these variables are being stored by your script.
Lastly, throughout my career, I have emphasized on building long-term relationships with clients by providing them with dependable solutions in a timely manner. I believe effective communication is key in achieving that and I'll keep you involved at every step of the way. Let me help you streamline your Python script for optimized performance.