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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def mixed_list_file(cls, filename):
 """ Read a list of mixed values from a file. The file format is: - # anywhere in the line begins a comment - leading and trailing spaces are ignored - empty lines are ignored - strings cannot span over a single line - integers can be specified as: - decimal numbers ("100" is 100) - hexadecimal numbers ("0x100" is 256) - binary numbers ("0b100" is 4) - octal numbers ("0100" is 64) @type filename: str @param filename: Name of the file to read. @rtype: list @return: List of integers and strings read from the file. """

        count  = 0
        result = list()
        fd     = open(filename, 'r')
        for line in fd:
            count = count + 1
            if '#' in line:
                line = line[ : line.find('#') ]
            line = line.strip()
            if line:
                try:
                    value = cls.integer(line)
                except ValueError:
                    value = line
                result.append(value)
        return result