Python program to find the frequency of each element in the array

#Initialize array     
arr = [1, 2, 8, 3, 2, 2, 2, 5, 1];     
#Array fr will store frequencies of element    
fr = [None] * len(arr);    
visited = -1;    
     
for i in range(0, len(arr)):    
    count = 1;    
    for j in range(i+1, len(arr)):    
        if(arr[i] == arr[j]):    
            count = count + 1;    
            #To avoid counting same element again    
            fr[j] = visited;    
                
    if(fr[i] != visited):    
        fr[i] = count;    
     
#Displays the frequency of each element present in array    
print("---------------------");    
print(" Element | Frequency");    
print("---------------------");    
for i in range(0, len(fr)):    
    if(fr[i] != visited):    
        print("    " + str(arr[i]) + "    |    " + str(fr[i]));    
print("---------------------");    

Output:

----------------------------------------
Element | Frequency
----------------------------------------
1           |         2
2           |         4
8           |         1
3           |         1
5           |         1
----------------------------------------