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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 _get_ind_from_H(H):
        r'''Method defined in the US Standard Atmosphere 1976 for determining
        the index of the layer a specified elevation is above. Levels are 
        0, 11E3, 20E3, 32E3, 47E3, 51E3, 71E3, 84852 meters respectively.
        '''
        if H <= 0:
            return 0
        for ind, Hi in enumerate(H_std):
            if Hi >= H :
                return ind-1
        return 7