python关联数组的应用示例

#!/usr/bin/python
FD = open("/root/data","r")
R = {}
firline = FD.readline()

for line in FD.readlines():
    tmp=line.split()
    if tmp[0] in R:
        if tmp[1] in R[tmp[0]]:
            R[tmp[0]][tmp[1]][tmp[3]]=tmp[2]
        else :
            R[tmp[0]][tmp[1]]={}
            R[tmp[0]][tmp[1]][tmp[3]]=tmp[2]
    else:
        R[tmp[0]]={}
        R[tmp[0]][tmp[1]]={}
        R[tmp[0]][tmp[1]][tmp[3]]=tmp[2]

for release in R.keys():
    print "Release: " + release
    for spa in R[release].keys():
        print "tSPA: " + spa
        for own in R[release][spa].keys():
            print "tt" + R[release][spa][own] + "t" + own