Find the Max value in a Python List without using the max function

To find the maximum value in a Python List without using the “max()” function:

`my_list = [22, 15, 73, 215, 4, 7350, 113]max_value = my_list[0]for val in my_list:    if val > max_value:        max_value = valprint(max_value)`

The result:

``7350``

Function to find the max value

Here is a function to find the maximum value in a List:

`def find_max_value(my_list):    """    Find the maximum value in a list    :param my_list: The List of values    :return: The max item in the list    """    if not my_list:        raise ValueError("List is empty")    max_value = my_list[0]    for val in my_list:        if val > max_value:            max_value = val    return max_valuenumbers_list = [22, 15, 73, 215, 4, 7350, 113]print(find_max_value(numbers_list))`

The result:

``7350``

`import pytest# Assuming the find_max_value function is stored under app.number_operationsfrom app.number_operations import find_max_value@pytest.mark.parametrize(    "input_list, expected_output",    [        ([22, 15, 73, 215, 4, 7350, 113], 7350),        ([3.14, 2.71, 1.618, 2.71828], 3.14),        (["apple", "banana", "orange", "kiwi"], "orange"),        ([], None),    ],)def test_find_max_value(input_list, expected_output):    """    Test the find_max_value function across different input lists.    :param input_list: The input list    :param expected_output: The expected output of the max value, or an exception for an empty list    """    if not input_list:        with pytest.raises(ValueError):            find_max_value(input_list)    else:        assert find_max_value(input_list) == expected_output`
`============================= test session starts =============================collecting ... collected 4 itemstest_number_operations.py::test_find_max_value[input_list0-7350] PASSED  [ '25%']test_number_operations.py::test_find_max_value[input_list1-3.14] PASSED  [ '50%']test_number_operations.py::test_find_max_value[input_list2-orange] PASSED [ '75%']test_number_operations.py::test_find_max_value[input_list3-None] PASSED  ['100%']============================== 4 passed in '0.01s' ==============================`