# import necessary libraries
import pandas as pd
import numpy as np

# define your series
my_series = pd.Series([8, 9, 1, 2, 1, 1, 7, 8, 9, 2,\
                        10, 7, 2, 1, 8, 8, 3, 10, 7, 3])

# use np.unique() method
unique_items, counts = np.unique(my_series, \
                                  return_counts = True)

# map the items to their counts
result = zip(unique_items, counts)

# print result
print("Frequency Counts of Items: ")
print('Format: (Item, Count)')
for item in result:
    print(item)