old_contents: '''
  	Go through all artwork jsons and produce an index for
  	level0, level1, level2
  
  	Does not preserve relationships between the levels
  '''
  
  
  import json
  from os import walk
  
  # use dict to elimiate duplicated entries as new entries
  # are added as {'value of id': 'value of name'}
  level0 = {}
  level1 = {}
  level2 = {}
  
  def open_files(targetpath):
  	for dirname, dirnames, filenames in walk(targetpath):
  
  		for filename in filenames:
  
  			filepath = '/'.join([dirname,filename])
  			fileopen = open(filepath).read().decode('utf-8')
  			jsonopen = json.loads(fileopen)
  
  			get_all_subjects(jsonopen)
  
  def get_all_subjects(jsonfile):
  	subjectcount = jsonfile['subjectCount']
  
  	if subjectcount is not 0:
  		subjects0 = jsonfile['subjects']['children']
  
  		for child in subjects0:
  			subjects1 = child['children']
  			level0[child['id']] = child['name']
  
  			for child in subjects1:
  				subjects2 = child['children']
  				level1[child['id']] = child['name']
  
  				for child in subjects2:
  					level2[child['id']] = child['name']
  
  def write_files(dict, filename):
  	jsondata = json.dumps(dict,sort_keys = True,separators = (',',':'))
  	output = open('../processed/' + filename,'w')
  	output.writelines(jsondata)
  	output.close
  
  open_files('../artworks')
  
  write_files(level0,'level0.json')
  write_files(level1,'level1.json')
  write_files(level2,'level2.json')
new_contents: '''
  	Go through all artwork jsons and produce an index for
  	level0, level1, level2
  
  	Outputs a json collection
  
  	Does not preserve relationships between the levels
  '''
  
  
  import json
  from os import walk
  
  # use dict to elimiate duplicated entries as new entries
  # are added as {'value of id': 'value of name'}
  level0 = {}
  level1 = {}
  level2 = {}
  
  def open_files(targetpath):
  	for dirname, dirnames, filenames in walk(targetpath):
  
  		for filename in filenames:
  
  			filepath = '/'.join([dirname,filename])
  			fileopen = open(filepath).read().decode('utf-8')
  			jsonopen = json.loads(fileopen)
  
  			get_all_subjects(jsonopen)
  
  def get_all_subjects(jsonfile):
  	subjectcount = jsonfile['subjectCount']
  
  	if subjectcount is not 0:
  		subjects0 = jsonfile['subjects']['children']
  
  		for child in subjects0:
  			subjects1 = child['children']
  			level0[child['id']] = child['name']
  
  		for child in subjects1:
  			subjects2 = child['children']
  			level1[child['id']] = child['name']
  
  		for child in subjects2:
  			level2[child['id']] = child['name']
  
  def write_files(dict, filename):
  	jsondata = json.dumps(dict,sort_keys = True,separators = (',',':'))
  	output = open('../processed/' + filename,'w')
  	output.writelines(jsondata)
  	output.close
  
  open_files('../artworks')
  
  write_files(level0,'level0.json')
  write_files(level1,'level1.json')
  write_files(level2,'level2.json')
subject: clean up