human
Solve the following python programming problem given the following code:
def compare_versions(x, y) : 
    "
    Expects 2 strings in the format of 'X.Y.Z' where X, Y and Z are
    integers. It will compare the items which will organize things
    properly by their major, minor and bugfix version.
    ::

        >>> my_list = ['v1.13', 'v1.14.2', 'v1.14.1', 'v1.9', 'v1.1']
        >>> sorted(my_list, cmp=compare_versions)
        ['v1.1', 'v1.9', 'v1.13', 'v1.14.1', 'v1.14.2']

    " 
    def version_to_tuple(version) : 
        version_list = version [1 :].split ('.', 2) 
        if (len (version_list) <= 3) : 
            [version_list.append (0) for _ in range ((3 - len (version_list)))] 
try : 
            return tuple ((int (version) for version in version_list)) 
except ValueError : 
            return (0, 0, 0) 
(x_major, x_minor, x_bugfix) = version_to_tuple (x) 
    (y_major, y_minor, y_bugfix) = version_to_tuple (y) 
    return (cmp (x_major, y_major) or cmp (x_minor, y_minor) or cmp (x_bugfix, x_minor)) 

    
    

    Fix the buggy line: return (cmp (x_major, y_major) or cmp (x_minor, y_minor) or cmp (x_bugfix, x_minor))
assistant
#Here is Python code to fix the buggy line: return (cmp (x_major, y_major) or cmp (x_minor, y_minor) or cmp (x_bugfix, x_minor))
.

return (cmp (x_major, y_major) or cmp (x_minor, y_minor) or cmp (x_bugfix, y_bugfix))