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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Load and Filter Data
Load movie data from the supplied json files. Filter out duplicates and movies with missing information.
Step1:  Filter out movies that don't have enough data
Step2:  Download Hi-Res Posters
Many of the rottentomatoes movies don't have high-resolution data, but we can find it.
As a last resort, downloads photos from TMDB. Set your API key as environment variable TMDB_KEY.
Step3:  Filter out movies with no poster
Step4:  Generate Thumbnail Sprites
Step5:  Generate Django Data Fixture
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Python Code:
import json
movie_data = []
with open('download/movies.json') as f:
    movie_data.extend(json.load(f)['movies'])
with open('download/more_movies.json') as f:
    movie_data.extend(json.load(f)['movies'])
    
len(movie_data)
sorted(movie_data[1].keys())
requiredFields = set([
    'id',
    'links',
    'mpaa_rating',
    'posters',
    'ratings',
    'runtime',
    'synopsis',
    'title',
    'year'
])
Explanation: Load and Filter Data
Load movie data from the supplied json files. Filter out duplicates and movies with missing information.
End of explanation
def allFilled(movie):
    for k in movie:
        if not movie.get(k) and k in requiredFields:
            return False
    return True
filtered_data = [m for m in movie_data if allFilled(m)]
len(filtered_data)
ids = set()
dupes = set()
for m in filtered_data:
    if m['id'] in ids:
        dupes.add(m['id'])
    ids.add(m['id'])
    
print("uniques:\t", len(ids))
print("duplicates:\t", len(dupes))
movie_dict = {m['id']: m for m in filtered_data}
Explanation: Filter out movies that don't have enough data
End of explanation
import os
import re
import requests
import time
def posterPath(rt_id):
    return os.path.join('..', 'starter', 'static', 'posters', rt_id + '.jpg')
def getURLFromTMDB(imdb_id):
    KEY = os.environ['TMDB_KEY']
    IMG_PATTERN = 'http://api.themoviedb.org/3/movie/{imdbid}/images?api_key={key}' 
    r = requests.get(IMG_PATTERN.format(imdbid=imdb_id, key=KEY))
    api_response = r.json()
    print (api_response)
    if not api_response.get('posters'):
        return None
    for p in api_response['posters']:
        if p['iso_639_1'] == 'en':
            return 'http://image.tmdb.org/t/p/original' + p['file_path']
    return None
def getPosterURL(movie):
    link = m['posters']['original']
    # links with 'resizing' in them only return thumbnails
    if 'resizing' in link:
        # we can find the flixter link
        if 'movie' in link:
            print("> extracted: {} ({})".format(movie['title'], movie['id']))
            path = re.match('^.*?(/movie.*)$', link).group(1)
            return "http://content9.flixster.com" + path
        elif m.get('alternate_ids') and m['alternate_ids'].get('imdb'):
            print("> tmdb: {} ({})".format(movie['title'], movie['id']))
            imdb_id = m['alternate_ids']['imdb']
            return None
        else:
            return None
    print("> direct: {} ({})".format(movie['title'], movie['id']))
    return link
notFound = []
for m in movie_dict.values():
    if os.path.exists(posterPath(m['id'])):
        continue
    print (posterPath(m['id']))
    url = getPosterURL(m)    
    if url:
        response = requests.get(url)
        if response.status_code == 200:
            with open(posterPath(m['id']), 'wb') as f:
                f.write(response.content)
        elif response.status_code == 404:
            print(">> Not found:", m['id'], url)
            notFound.append(m['id'])
        else:
            print(">> Error:", response.status_code, m['id'], url)
        time.sleep(0.1)  # respect our API limits!
Explanation: Download Hi-Res Posters
Many of the rottentomatoes movies don't have high-resolution data, but we can find it.
As a last resort, downloads photos from TMDB. Set your API key as environment variable TMDB_KEY.
End of explanation
print("Before:", len(movie_dict))
for rt_id in set(movie_dict.keys()):
    if not os.path.exists(posterPath(rt_id)):
        del movie_dict[rt_id]
print("After:", len(movie_dict))
Explanation: Filter out movies with no poster:
End of explanation
from PIL import Image
import thumbnails
THUMB_SIZE = (200, 300)
MAX_SPRITE_SIZE = 5
SPRITE_SIZE = (THUMB_SIZE[0] * MAX_SPRITE_SIZE, THUMB_SIZE[1] * MAX_SPRITE_SIZE)
thumb_indices = {}  # Each index is a 3-tuple: file_number, row, column
sprites = []
for i, movie in enumerate(movie_dict.values()):
    f = int(i / MAX_SPRITE_SIZE ** 2)
    j = int(i % MAX_SPRITE_SIZE ** 2)
    row = int(j / MAX_SPRITE_SIZE)
    col = int(j % MAX_SPRITE_SIZE)
    
    if len(sprites) == f:
        sprites.append(Image.new(mode='RGB', size=SPRITE_SIZE))
    
    path = os.path.abspath(posterPath(movie['id']))
    thumb = thumbnails.get_thumbnail(path, "{}x{}".format(*THUMB_SIZE), crop='center')
    sprites[-1].paste(thumb.image, (col * THUMB_SIZE[0], row * THUMB_SIZE[1]))
    
    thumb_indices[movie['id']] = (f, row, col)
SPRITE_DIR = os.path.join('..', 'starter', 'static', 'thumb_sprites')
for i, s in enumerate(sprites):
    s.save(os.path.join(SPRITE_DIR, "sprite-{}.jpg".format(i)))
    
spriteInfo = {
    'thumb_size': THUMB_SIZE,
    'thumb_indices': thumb_indices,
    'n_sheets': len(sprites),
    'sheet_size': MAX_SPRITE_SIZE
}
with open(os.path.join('..', 'starter', 'templates', "sprites.json"), 'w') as f:
    json.dump(spriteInfo, f)
Explanation: Generate Thumbnail Sprites
End of explanation
def generateFixture(movie):
    return {
        'model': 'starter.Movie',
        'pk': movie['id'],
        'fields': {
            'rt_link': movie['links'].get('alternate'),
            'runtime': movie.get('runtime'),
            'audience_score': movie['ratings'].get('audience_score'),
            'critics_score': movie['ratings'].get('critics_score'),
            'title': movie.get('title'),
            'year': movie.get('year'),
            'synopsis': movie.get('synopsis'),
            'mpaa_rating': movie.get('mpaa_rating'),
            'imdb_id': movie['alternate_ids'].get('imdb') if movie.get('alternate_ids') else '',
            'actors': json.dumps([member['name'] for member in movie.get('abridged_cast')]),
            'audience_rating': movie['ratings'].get('audience_rating', ''),
            'critics_rating': movie['ratings'].get('critics_rating', ''),
        }
    }
fixtures = [generateFixture(m) for m in movie_dict.values()]
with open(os.path.join('..', 'starter', 'fixtures', 'movie_fixture.json'), 'w') as f:
    json.dump(fixtures, f, indent=2)
Explanation: Generate Django Data Fixture
End of explanation
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