def t(x):
    physicals = []
    free = [] 
    total = []
    type = []
    for child in x.findall('Drive'):
        free.append(child.findall('Free_bytes'))
        total.append(child.findall('Total_bytes'))
        type.append(child.findall('Drive_type'))
    # combine list of free bytes with list of total bytes into one list of tuples [(free, total), (free, total)]
    pairs = zip([e[0].text for e in free],[f[0].text for f in total])
    i = 0
    for p in pairs:
        if type[i][0].text == '3':
            physicals.append(p)
        i += 1
    return { "Free Space": physicals}