s2.py

#Sorting dictionary based on len function
l1={'carrot':'vegetable','red':'color','apple':'fruit'}

#Returns list of keys sorted based on len function
print (sorted(l1,key=len))
#Output:['red', 'apple', 'carrot']

#Returns list of values sorted based on len fucntion
print (sorted(l1.values(),key=len))
#Output:['fruit', 'color', 'vegetable']


#Sorting list based on len function
l1=['blue','green','red','orange']
print (sorted(l1,key=len)) 
#Output:['red', 'blue', 'green', 'orange']