356906555Wdef read_airports (airports_source: TextI0) -> AirportDict:"Return a dictionary containing the information in airports_source.Skip entries that have no IATA code.目錄>>> from io import String10>>> airports_src>>> airports_res read_airports (airports_src)>>> airports_res['AA1'][0], airports_res['AA1'][1](1', 'Apt1')airports_res['AA4'][1]>>> airports_res['AA4'][0],('4', 'Apt4')>>> len(airports_res)4>>> airports_res == TEST AIRPORTS DICT313131AirportDict =StringIO(TEST_AIRPORTS_SRC)

Solution: Python Code: def read_airports(airports_source: TextIO) -> AirportDict: """Return…

def read_airports(airports_source: TextI0) -> AirportDict: ***Return a dictionary containing the information in airports_source. Skip entries that have no IATA code. >>> from io import StringIO >>> airports_src StringIO(TEST_AIRPORTS _SRC) >>> airports_res = read_airports (airports_src) >>> airports_res['AA1'][0], airports_res['AA1'][1] ('1', 'Apt1') >>> airports_res['AA4'][0], airports_res['AA4'][1] ('4', 'Apt4') >>> len(airports_res) 4 >>> airports_res == TEST_AIRPORTS_DICT True AirportDict = = {}

def read_airports(airports_source: TextI0) -> AirportDict: ***Return a dictionary containing the information in airports_source. Skip entries that have no IATA code. >>> from io import StringIO >>> airports_src StringIO(TEST_AIRPORTS _SRC) >>> airports_res = read_airports (airports_src) >>> airports_res['AA1'][0], airports_res['AA1'][1] ('1', 'Apt1') >>> airports_res['AA4'][0], airports_res['AA4'][1] ('4', 'Apt4') >>> len(airports_res) 4 >>> airports_res == TEST_AIRPORTS_DICT True AirportDict = = {}

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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