PEP 8 Inspection over-generalizes blank lines around functions

PEP 8 only requires blank lines around "top-level function and class definitions" and "method definitions inside a class". However, pep8 marks any function without a line above it as failing the rule.

This is especially troublesome for functions that are inside other functions or methods, because they are often short and have no reason for a line above:

def test():
    def success_callback():  # no need for blank line above
        print('Success! A wonderful thing has completed!')
    def error_callback():  # no need for blank line above
        print('Error! The entire program is crashing around us!')
    run_async_function(success_callback, error_callback)

The repository is described as one Python file; start by locating the PEP 8 blank-line inspection for function definitions. Verify the behavior against the nested-function example, then confirm that the check still applies to top-level functions, classes, and methods. No test file is named in the issue.