如何检查列表中的字典项？ 蟒蛇

Question

我有字典：

data_portgroup = {"data_portgroup" : ["DataPortGroup1", "DataPortGroup2"]}
mgmt_portgroup = {"mgmt_portgroup" : ["MgmtPortGroup1", "MgmtPortGroup2"]}
trunk_portgroup = {"trunk_portgroup" : ["TrunkPortGroup1", "TrunkPortGroup2"]}

我有一个清单：

portgroups = ["VM Network", 
"VMPortGroup1",
"DataPortGroup1",
"f7b64e53-cdb0-4bb6-b479-8c8aa6a5ab10",
"TrunkPortGroup1",
"dvSwitch-DVUplinks-232",
"MgmtPortGroup1",
"dvPortGroup",
"dvSwitchOVSvApp-DVUplinks-69",
"dvSwitchBootVMs-DVUplinks-61"
]

现在我想检查列表中是否存在字典值？

Answer 1

你可以使用list comprehension（pythonic方式来构建列表）

found_in_data_portgroup  = [pg for pg in portgroups if pg in data_portgroup["data_portgroup"]]
found_in_mgmt_portgroup  = [pg for pg in portgroups if pg in mgmt_portgroup["mgmt_portgroup"]]
found_in_trunk_portgroup = [pg for pg in portgroups if pg in trunk_portgroup["trunk_portgroup"]]

print found_in_data_portgroup
print found_in_mgmt_portgroup
print found_in_trunk_portgroup

获得

['DataPortGroup1']
['MgmtPortGroup1']
['TrunkPortGroup1']