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moive_loader.py
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import argparse
class movie:
def __init__(self, genre, director, actor):
self.genre = genre
self.director=director
self.actor=actor
class movie_loader:
def __init__(self):
self.movie_dict=self.load_movie()
self.genre_list, self.director_list, self.actor_list=self.load_attribute()
def load_movie(self): # map the feature entries in all files, kept in self.features dictionary
parser = argparse.ArgumentParser(description=''' load movie data''')
parser.add_argument('--movie_data_file', type=str, default='./ML100K/auxiliary-mapping.txt')
parsed_args = parser.parse_args()
movie_file = parsed_args.movie_data_file
movie_dict= {}
fr = open(movie_file, 'r')
for line in fr:
lines = line.replace('\n', '').split('|')
# if len(lines) != 4:
# continue
movie_id = lines[0]
genre_list = []
genres = lines[1].split(',')
for item in genres:
genre_list.append(int(item))
director_list=[]
directors = lines[2].split(',')
for item in directors:
director_list.append(int(item))
actor_list=[]
actors = lines[3].split(',')
for item in actors:
actor_list.append(int(item))
new_movie = movie(genre_list, director_list, actor_list)
movie_dict[movie_id]=new_movie
fr.close()
# id_list1=[]
# id_list2=[]
# fr = open(movie_file, 'r')
# for line in fr:
# lines = line.replace('\n', '').split('|')
# # if len(lines) != 4:
# # continue
# movie_id = int(lines[0])
# if movie_id not in id_list1:
# id_list1.append(movie_id)
# fr.close()
#
# fr = open('ML/train.txt', 'r')
# for line in fr:
# lines = line.strip().split('\t')
# # if len(lines) != 4:
# # continue
# movie_id = int(lines[1])
# if movie_id not in id_list2:
# id_list2.append(movie_id)
# fr.close()
# fr = open('ML/test.txt', 'r')
# for line in fr:
# lines = line.strip().split('\t')
# # if len(lines) != 4:
# # continue
# movie_id = int(lines[1])
# if movie_id not in id_list2:
# id_list2.append(movie_id)
# fr.close()
# rest=set(id_list2).difference(set(id_list1))
return movie_dict
def load_attribute(self): # map the feature entries in all files, kept in self.features dictionary
parser = argparse.ArgumentParser(description=''' load movie data''')
parser.add_argument('--movie_data_file', type=str, default='./ML100K/auxiliary-mapping.txt')
parsed_args = parser.parse_args()
movie_file = parsed_args.movie_data_file
genre_list = []
director_list=[]
actor_list=[]
fr = open(movie_file, 'r')
for line in fr:
lines = line.replace('\n', '').split('|')
# if len(lines) != 4:
# continue
genres = lines[1].split(',')
for item in genres:
if int(item) not in genre_list:
genre_list.append(int(item))
directors = lines[2].split(',')
for item in directors:
if int(item) not in director_list:
director_list.append(int(item))
actors = lines[3].split(',')
for item in actors:
if int(item) not in actor_list:
actor_list.append(int(item))
fr.close()
return genre_list,director_list,actor_list