Count in Dictionaries

[Wolfpack2605]

This is the task that has to completed by using a dictionary of some sort.

You are curious about the most popular and least popular colours of cars and decide to write a program to calculate the frequency of car colours.

Your program should read in the colour of each car until a blank line is entered, and then print out (in any order) all the different colours of car with counts.

For example:

Output:
Car: red
Car: white
Car: blue
Car: green
Car: white
Car: silver
Car: 
Cars that are green: 1
Cars that are silver: 1
Cars that are red: 1
Cars that are white: 2
Cars that are blue: 1

​
Here is another example:

Output:
Car: red
Car: white
Car: white
Car: red
Car: white
Car: white
Car: white
Car: 
Cars that are red: 2
Cars that are white: 5
​

This is what I have done:

dictionary={}
values=[]
unique=[]
colour=input('Car: ')
values.append(colour)
dictionary['car']=colour


while colour != '':
  colour=input('Car: ')
  values.append(colour)
  dictionary[colour]=' '
print(dictionary)
values=set(values)
values=list(values)


for i in values:
  if i != "":
    unique.append(i)
print(unique)


for i in unique:
  a=((i in dictionary).count())

And this is the output including some inputs that I have provided:

Output:
Car: a
Car: s
Car: d
Car: a
Car: a
Car: 
{'car': 'a', 's': ' ', 'd': ' ', 'a': ' ', '': ' '}
['a', 's', 'd']

Error:
Traceback (most recent call last):
  File "program.py", line 25, in <module>
    a=((i in dictionary).count())
AttributeError: 'bool' object has no attribute 'count'

I need to count the unique values and print how many times they appear. Please help.