import sys, getopt
import re
#   imported three packages

"""
Hello, junk
here
"""

"hello"

from operator import itemgetter

#   getopt: C-style parser for command line options.
#   sys: System-specific parameters and functions.
#   re: regular expression operation
#   operator: methods for built-in operators.
#       (useful when passing the function as a parameter.

#   Read and process a weather information file.
#   It parse the codeSum column (#23) in the CSV file
#   and show the count of each codeSum.

#   sys.argv[0]: codeSum.py 
#   sys.argv[1]: 201401daily_sample.csv
#   'r': mode, read-only
f = open(sys.argv[1], 'r')
result = [];   # an empty list.
heading = f.readline().split(',')

#   print(heading)
num_line = 0;

for line in f:  # file contains an iterator
    #   print(line)

    line = line.rstrip()    #   strip trailing white spaces
    #   result is an array of arrays:
    #   Add the array contains columns of the current line
    #   to result.
    result.append(line.split(','))
    num_line = num_line + 1
f.close()

print (result)

#   Debug:
#   for i in range(len(result)):
#       print (str(i) + ":" + str(result[i][22]))

#   count is a dictionary with the key being the individual CodeSummary
count = {};
for i in range(len(result)):
    #   process one reading.
    line = result[i][22].strip()
    if line:
        #   Get all codeSummary and update their counts.
        summary = re.split('\s+', line)
        for j in range(len(summary)):
            #   Debug:
            #   print (str(j) + ":" + str(summary[j]) + "---")
            if summary[j] in count.keys():
                count[summary[j]] += 1
            else:
                count[summary[j]] = 1

#   Print result inthe sorted order of codeSum.                
for key, value in sorted(count.items(), key=itemgetter(0)):
    print (key + ": " + str(value))