有個(gè)要求需要在python的標(biāo)準(zhǔn)輸出時(shí)候顯示json格式數(shù)據(jù),如果縮進(jìn)顯示查看數(shù)據(jù)效果會(huì)很好,這里使用json的包會(huì)有很多操作
import jsondate = {u'versions': [{u'status': u'CURRENT', u'id': u'v2.3', u'links': [{u'href': u'http://controller:9292/v2/', u'rel': u'self'}]}, {u'status': u'SUPPORTED', u'id': u'v2.2', u'links': [{u'href': u'http://controller:9292/v2/', u'rel': u'self'}]}, {u'status': u'SUPPORTED', u'id': u'v2.1', u'links': [{u'href': u'http://controller:9292/v2/', u'rel': u'self'}]}, {u'status': u'SUPPORTED', u'id': u'v2.0', u'links': [{u'href': u'http://controller:9292/v2/', u'rel': u'self'}]}, {u'status': u'SUPPORTED', u'id': u'v1.1', u'links': [{u'href': u'http://controller:9292/v1/', u'rel': u'self'}]}, {u'status': u'SUPPORTED', u'id': u'v1.0', u'links': [{u'href': u'http://controller:9292/v1/', u'rel': u'self'}]}]}PRint json.dumps(data, sort_keys=True, indent=2) # 排序并且縮進(jìn)兩個(gè)字符輸出
這樣就會(huì)得到如下的輸出:
{ "versions": [ { "id": "v2.3", "links": [ { "href": "http://controller:9292/v2/", "rel": "self" } ], "status": "CURRENT" }, { "id": "v2.2", "links": [ { "href": "http://controller:9292/v2/", "rel": "self" } ], "status": "SUPPORTED" }, { "id": "v2.1", "links": [ { "href": "http://controller:9292/v2/", "rel": "self" } ], "status": "SUPPORTED" }, { "id": "v2.0", "links": [ { "href": "http://controller:9292/v2/", "rel": "self" } ], "status": "SUPPORTED" }, { "id": "v1.1", "links": [ { "href": "http://controller:9292/v1/", "rel": "self" } ], "status": "SUPPORTED" }, { "id": "v1.0", "links": [ { "href": "http://controller:9292/v1/", "rel": "self" } ], "status": "SUPPORTED" } ]}可以看到都已經(jīng)格式化了。
這是在python中,如果直接使用命令行,希望直接轉(zhuǎn)換,可以使用 data | python -mjson.tool 來(lái)輸出json格式的數(shù)據(jù)
echo '{"first_key": "value", "second_key": "value2"}' | python -mjson.tool
比如想直接在命令行中過(guò)濾得到first_key對(duì)于的值,那么這樣即可:
echo '{"first_key": "value", "second_key": "value2"}' | python -c 'import sys, json; print json.load(sys.stdin)[sys.argv[1]]' first_key就會(huì)得到對(duì)于的value了。
參考資料:
http://liuzhijun.VEvb.com/blog/1859857
http://docs.python.org/2/library/json.html
http://m.survivalescaperooms.com/coser/archive/2011/12/14/2287739.html
http://pymotw.com/2/json/
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