>>> test1 = {"key1":"aa","key2":"bb","key3":"cc","key4":"dd","key5":"ee","key6":"ff","key7":"gg"} >>> type(test1) <class 'dict'>
>>> len(test1) 7
>>> for i in test1: print(i) key1 key2 key3 key4 key5 key6 key7 >>> keys=["key7","key4","key2"] >>> for i in test1: if i in keys: print(i,test1[i]) key2 bb key4 dd key7 gg