33 lines
900 B
Python
33 lines
900 B
Python
"""
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metro_lat_long.py
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Demonstration of nested tuple unpacking::
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>>> main()
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| latitude | longitude
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Mexico City | 19.4333 | -99.1333
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New York-Newark | 40.8086 | -74.0204
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São Paulo | -23.5478 | -46.6358
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"""
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# tag::MAIN[]
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metro_areas = [
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('Tokyo', 'JP', 36.933, (35.689722, 139.691667)),
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('Delhi NCR', 'IN', 21.935, (28.613889, 77.208889)),
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('Mexico City', 'MX', 20.142, (19.433333, -99.133333)),
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('New York-Newark', 'US', 20.104, (40.808611, -74.020386)),
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('São Paulo', 'BR', 19.649, (-23.547778, -46.635833)),
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]
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def main():
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print(f'{"":15} | {"latitude":>9} | {"longitude":>9}')
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for record in metro_areas:
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match record: # <1>
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case [name, _, _, (lat, lon)] if lon <= 0: # <2>
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print(f'{name:15} | {lat:9.4f} | {lon:9.4f}')
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# end::MAIN[]
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if __name__ == '__main__':
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main()
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