How to realize Dictionary derivation by python

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Dictionary derivation

Teams = ["Packers", "49ers", "Ravens", "Patriots"] print {key: value for value, key in enumerate (teams)} > > {'49ers libraries: 1,' Ravens': 2, 'Patriots': 3,' Packers': 0} what are the commonly used libraries of python: 1.requesutsfive2.scrapyfive3.pillowtermitt4.twistedpolitics 5.numpyly6.matplotlibans7.pygamafi8.ipyhton, etc.

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