link from database that has visited set to 0 then change it to -1 to say that it's in-use.我也用这个函数对我的Downloaders但是可以同时调用这两个函数,因为Fetchers从不选择文件,而Downloaders从不选择链接。
现在,synchronized正在使用单个锁(每个对象),因此不能同时调用我的两个方法。
importlib/__init__.py", line 37, in import_moduleImportError: No module named downloaders.downloader_middlewares.proxy_connect这是我的项目结构: __init__.py items.py /downloaders/resources
smallint(3) unsigned NOT NULL DEFAULT '600', `downloadersUPDATE content a JOIN content_csv_dump_temp b SET a.downloaders= b.downloaders,
a.verified = b