Debug Python Error Message

I need help debugging a Python error. Please analyze the error message/traceback and the relevant code to help me understand what's wrong and how to fix it. Error message/traceback: ``` [PASTE ERROR MESSAGE/TRACEBACK HERE] ``` Code that caused the error: ```python [PASTE RELEVANT CODE HERE] ``` Please provide: 1. ERROR ANALYSIS * Clear explanation of what the error means * Identification of the specific line causing the problem * Explanation of why this error is occurring * The root cause of the issue in simple terms 2. SOLUTION * Specific code changes to fix the error * Explanation of why the fix works * Complete corrected version of the problematic code * Any alternative solutions if multiple approaches exist 3. DEBUGGING PROCESS * How to systematically identify this type of error * What clues in the error message point to the cause * How to use print statements or debugging tools to diagnose * Steps to isolate and verify the issue 4. PREVENTION ADVICE * Best practices to avoid this error in the future * Common pitfalls related to this type of error * Defensive programming techniques * Testing strategies to catch this earlier 5. ADDITIONAL CONTEXT * Explanation of relevant Python concepts related to the error * Common scenarios where this error occurs * Any performance or security implications * References to relevant documentation I'm looking for a thorough understanding of the problem and a clear solution that will prevent this error from happening again.