AI was used to create this answer

The error "TypeError: list indices must be integers or slices, not NoneType" means that index is None, and you're trying to use it to access percentage_table[index], which is causing the issue.

Possible Causes:

1. The function find_index() returns None when no valid index is found.
2. This means that the integrated_daily_wage does not fit within any of the (low_num, low_measure, high_num, high_measure) conditions in the rates list (ceav_table).
3. If ceav_table is empty or incorrectly formatted, the loop may never find a match, leading to None.

Solution:

1. Check if ceav_table is empty or incorrect:
   • Add a debug print to check its contents before calling find_index().

   python
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   print("CEAV Table:", ceav_table)
   

2. Ensure find_index() does not return None unexpectedly:
   • Modify the part where index is used:

   python
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   if index is None:
       raise ValueError("No valid index found in ceav_table for the given integrated_daily_wage.")
   

3. Handle the case where index is None gracefully:

   python
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   percent = percentage_table[index] if index is not None else 0
   

4. Verify percentage_table is a valid list:
   • Ensure percentage_table is properly structured before accessing elements.

   python
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   print("Percentage Table:", percentage_table)
   

Updated Code with Fix:

python
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index = find_index(integrated_daily_wage, ceav_table)

if index is None:
    raise ValueError(f"No valid index found for wage {integrated_daily_wage} in table {ceav_table}")

percentage_table = payslip._rule_parameter('l10n_mx_ceav_percentage')

if not isinstance(percentage_table, list) or index >= len(percentage_table):
    raise ValueError("Invalid percentage table or index out of range.")

percent = percentage_table[index]

Next Steps:

• Run the updated code.
• If the error persists, print ceav_table and percentage_table and share their contents.