>>> test1 = {"key1":"aa","key2":"bb","key3":"cc","key4":"dd","key5":"ee","key6":"ff","key7":"gg"} >>> type(test1) <class 'dict'>
>>> len(test1) 7
>>> keys = ["key6","key10","key3","key8","key20","key1"] >>> for i in keys: if i in test1: print(i,"in") else: print(i,"not in") key6 in key10 not in key3 in key8 not in key20 not in key1 in