CODE EXAMPLE FOR PYTHON

python using list as dictionary key

# Declaring a dictionary
d = {} 
  
# This is the list which we are 
# trying to use as a key to
# the dictionary
a =[1, 2, 3, 4, 5]
  
# converting the list a to a string
p = str(a)
d[p]= 1
  
# converting the list a to a tuple
q = tuple(a) 
d[q]= 1
  
for key, value in d.items():
    print(key, ':', value)