Random Google Images - v1.0b
Publicado por erick Darko (última atualização em 15/01/2019)
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Download 6937.random_google_images.py
Está cansado de procurar um wallpaper legal para sua areá de trabalho? Com esse script escrito em Python 3 você pode pesquisar por imagens no Google e utilizando o visualizador de imagens feh defini-las como seu wallpaper sem ter que fazer quase nada.
Dependências:
feh # duh !
bs4 - BeautifulSoup
Instalação em distros baseadas no Debian:
$ sudo apt-get install feh python3-bs4 -y
Executando o script:
$ python3 random_google_images.py wallpaper 4k -d 5
Para ver mais opções:
$ python3 random_google_images.py --help
#!/usr/bin/env python3.5 try: from bs4 import BeautifulSoup except ImportError as err: sys.exit(str(err)) from datetime import datetime from urllib.request import Request, urlopen import subprocess as sp import argparse import logging import json import os, sys import time parser = argparse.ArgumentParser(description="Search images on google and change your background with feh") parser.add_argument('search', type=str, action='store', help="search a image on google", nargs='*') parser.add_argument('--clear', action='store_true', help='clear cache') parser.add_argument('-r', '--recent', action='store_true', help='shows recent searches') parser.add_argument('-v', '--verbosity', action='store_true', help='shows debugging information') parser.add_argument('-d', action='store', type=int, help='delay in secunds between wallpapers default is 3s', default=3) args = parser.parse_args() search = '+'.join(args.search) # if you search foo bar will be equal foo+bar script_path = os.path.dirname(os.path.abspath(__file__)) # get the script absolute path # logging config LOG_FORMAT = "%(levelname)s %(asctime)s - %(message)s" log_path=os.path.join(script_path, 'info.log') logging.basicConfig(filename=log_path, level=logging.INFO, format=LOG_FORMAT, filemode='w') logger = logging.getLogger() class Cache: def __init__(self): """ create cache if not exists """ self.search_cache_path = os.path.join(script_path, 'cache/search_cache.json') if not os.path.exists(script_path + '/cache'): os.mkdir(script_path + '/cache') if not os.path.exists(self.search_cache_path) or args.clear: open(self.search_cache_path, 'w').close() if args.recent: # shows recent search cache recent_cache = self.load_cache() if recent_cache: [ print(k, end=' ') for k in recent_cache.keys() ] else: print('No recent cache.') def dump_cache(self, images): """ write cache """ with open(self.search_cache_path, 'r') as fp: if os.stat(self.search_cache_path).st_size > 0: search_cache = eval(json.load(fp)) search_cache[search] = images else: search_cache = json.dumps({search: images}) with open(self.search_cache_path, 'w') as fp: json.dump(str(search_cache), fp) def load_cache(self): """ return a list """ if os.stat(self.search_cache_path).st_size > 0: with open(self.search_cache_path) as fp: return eval(json.load(fp)) def update_cache(self, image): """ remove images from cache """ cache = self.load_cache() try: cache[search].remove(image) return cache[search] except Exception as err: logger.error(err) headers = { 'User-Agent': 'Mozilla/5.0 (Windows NqT 6.1) AppleWebKit/537.36 \ (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.3' } def get_soup(): """ return html """ url = 'https://www.google.com/search?q={}&source=lnms&tbm=isch'.format(search) try: req = Request(url, headers=headers) with urlopen(req) as html: return BeautifulSoup(html.read(), 'html.parser') except Exception as err: logger.error(err) def search_image(): """ search the specified image on google and return it """ soup = get_soup() imgs = soup.find_all('div', {'class': 'rg_meta'}) img_src = [] for i in imgs: link, ext = eval(i.text)["ou"], eval(i.text)["ity"] resolution = str(eval(i.text)["ow"]) + "x" + str(eval(i.text)["oh"]) if eval(i.text)["ow"] >= 800 and eval(i.text)["oh"] >= 600: # append if the image resolution is greater then 800x600 img_src.append((link, ext, resolution)) cache.dump_cache(img_src) return img_src def set_background(image): """ set background using feh """ link, img_format , resolution = image # the temporarily images are saved in /tmp/ image_path = '/tmp/img_{}.{}'.format(datetime.now().strftime("%H%M_%y%m%d"), img_format) try: req = Request(link, headers=headers) with urlopen(req, timeout=15) as image: with open(image_path, 'wb') as f: f.write(image.read()) except Exception as err: logger.error(err) return None try: out = sp.run(['feh', '--bg-scale', image_path], stdout=sp.DEVNULL, stderr=sp.DEVNULL, check=True) except sp.CalledProcessError as err: logger.error(err) return None delay = args.d time.sleep(delay) if os.path.exists(image_path): os.remove(image_path) return image_path class Main(): def __init__(self): search_cache = cache.load_cache() if search_cache != None: if search in search_cache: print('searching in the cache... ' + search.replace('+',' ')) self.images = search_cache[search] else: print('searching on google... ' + search.replace('+',' ')) self.images = search_image() else: print('searching on google... ' + search.replace('+',' ')) self.images = search_image() logger.info('cache length: {}'.format(len(self.images))) def run(self): try: i = last_line = 0 while True: image = self.images[i] current_image = set_background(image) if current_image == None: updated_cache = cache.update_cache(image) self.images.remove(image) logger.info('{} removed'.format(image)) logger.info('cache length: {}'.format(len(self.images))) i += 1 if i >= len(self.images) - 1: i = 0 if args.verbosity: # verbosity enable f = open(log_path, 'r') # read the log file f.seek(last_line) # return to the last line if f.readline(): # if line is not empty. This will change the current position on log file f.seek(last_line) # return to the last line print(f.readline().replace('\n', '')) # readline last_line = f.tell() # save where stoped except KeyboardInterrupt: if os.path.exists(current_image): os.remove(current_image) except Exception as err: logger.error(err) def check(): assert (sys.platform in 'linux'), "This code runs on Linux only." try: sp.run(['which', 'feh'], check=True, stdout=sp.DEVNULL) except: sys.exit('feh isn\'t installed') if args.d < 0: raise ValueError('sleep length must be non-negative') if __name__ == '__main__': check() cache = Cache() if args.search: Main().run()
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