Key Value Pair Service on Google App Engine

kvp-gae.py

import sys
import re #Regular expresensions module
import cPickle


#Get all but the first argument, this script accepts a list of dictionary files
arguments = sys.argv[1:]

#For each file that you pass to the script
for filename in arguments:
    
    dictionary = {}    
    
    #Use file name without extension as dictionary name
    dictname = re.search(r"\\(?P<dicname>\w+)\.", filename).group('dicname')     
    
    #Open the current file
    dictionaryFile = open(filename, "r")
    
    #For each line in the dictionary file
    ''' Examples
    AA rough, cindery lava [n -S]
    AB an abdominal muscle [n -S]
    AD an {advertisement=n} [n -S]
    AE one [adj]
    AG {agriculture=n} [n -S]
    '''
    for line in dictionaryFile:
        
        #Match a word (\w+), followed by a possible space (\s?), followed by the definition (.*)
        #?P<word> allows you to name the group for retrieval later
        match = re.match(r"(?P<word>\w+)\s?(?P<definition>.*)", line)
        if match is not None:
            #If there is a match, add the word and its definition to the dictionary
            dictionary[match.group('word')] = match.group('definition')
        else:
            #Otherwise, print the invalid line
            print "This line is invalid in file for " + dictname + ": " + line
    
    with open("..\\" + dictname + ".pickle", "wb") as mfile:
        #Create a file of type pickle, and dump the dictionary to it using the cPickle module        
        cPickle.dump(dictionary, mfile) 
    print 'Processed ' + dictname
    
print 'Done'