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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 nice_classname(obj):
 """Returns a nice name for class object or class instance. """

    if inspect.isclass(obj):
        cls_name = obj.__name__
    else:
        cls_name = obj.__class__.__name__
    mod = inspect.getmodule(obj)
    if mod:
        name = mod.__name__
        # jython
        if name.startswith('org.python.core.'):
            name = name[len('org.python.core.'):]
        return "%s.%s" % (name, cls_name)
    else:
        return cls_name