Write a Python function that returns a list of keys in a Dict that map to integer values that are unique (i.e. values appear exactly once in a Dict). The list of keys you return should be sorted in increasing order.
(If aDict does not contain any unique values, you should return an empty list.)
We are returning the key - not the value. We need to determine whether the key
relates to a value which is unique.
This function takes in a dictionary and returns a list.
"""
def uniqueValues(aDict):
'''
aDict: a dictionary
'''
sortList=[]
outList=[]
# Place values into a list
#If there is only one of the values, then add to list. Otherwise, don't
sortList = list(aDict.values())
#need a loop to remove all instances of a duplicate
#the length of the list will go down every time I remove an element
#for i in range(len(sortList)):
# while sortList[i] in sortList[i+1:len(sortList)]:
# sortList.remove(sortList[i])
#for i in range(len(sortList)):
for i in sortList:
if sortList.count(i) > 1: #if the item i appears in the list > 1
while i in sortList: #while that item is in the list
sortList.remove(i) #remove that item!
for k, v in aDict.items():
if v in sortList:
outList.append(k)
outList.sort()
return outList
testDict = {8: 3, 1: 3, 2: 2}
print(str(uniqueValues(testDict)))
(If aDict does not contain any unique values, you should return an empty list.)
We are returning the key - not the value. We need to determine whether the key
relates to a value which is unique.
This function takes in a dictionary and returns a list.
"""
def uniqueValues(aDict):
'''
aDict: a dictionary
'''
sortList=[]
outList=[]
# Place values into a list
#If there is only one of the values, then add to list. Otherwise, don't
sortList = list(aDict.values())
#need a loop to remove all instances of a duplicate
#the length of the list will go down every time I remove an element
#for i in range(len(sortList)):
# while sortList[i] in sortList[i+1:len(sortList)]:
# sortList.remove(sortList[i])
#for i in range(len(sortList)):
for i in sortList:
if sortList.count(i) > 1: #if the item i appears in the list > 1
while i in sortList: #while that item is in the list
sortList.remove(i) #remove that item!
for k, v in aDict.items():
if v in sortList:
outList.append(k)
outList.sort()
return outList
testDict = {8: 3, 1: 3, 2: 2}
print(str(uniqueValues(testDict)))
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