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def is_valid_index(idx, in_list):     """     Checks whether the provided index `idx`     is a valid positive index that can retrieve     an element from `in_list`.     Returns False if `idx` is negative or exceeds     the size of `in_list` - 1.     """     if (idx in in_list - 1):         if len(idx) != 0:             return idx         else:             return False Test Failed: We caught the following error caused by your code: unsupported operand type(s) for -: 'list' and 'int' Check the following: Incorrect number or type of parameters/arguments? Error inside the function? Did you run your code? Used some global scope variables? python debugging help

def is_valid_index(idx, in_list):     """     Checks whether the provided index `idx`     is a valid positive index that can retrieve     an element from `in_list`.     Returns False if `idx` is negative or exceeds     the size of `in_list` - 1.     """     if (idx in in_list - 1):         if len(idx) != 0:             return idx         else:             return False Test Failed: We caught the following error caused by your code: unsupported operand type(s) for -: 'list' and 'int' Check the following: Incorrect number or type of parameters/arguments? Error inside the function? Did you run your code? Used some global scope variables? python debugging help

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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def is_valid_index(idx, in_list):
    """
    Checks whether the provided index `idx`
    is a valid positive index that can retrieve
    an element from `in_list`.
    Returns False if `idx` is negative or exceeds
    the size of `in_list` - 1.
    """
    if (idx in in_list - 1):
        if len(idx) != 0:
            return idx
        else:
            return False

Test Failed: We caught the following error caused by your code: unsupported operand type(s) for -: 'list' and 'int' Check the following: Incorrect number or type of parameters/arguments? Error inside the function? Did you run your code? Used some global scope variables?

python debugging help

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