如何使wget-python模块不下载副本？

Question

当试图从4chan上的post（通过BASC\u py4chan）下载一个文件并通过wget下载它时，wget会下载这个文件，即使我做了一个if语句说如果文件名与当前目录中的文件名相同就不要下载它？这是wget python的问题还是我犯了错误？你知道吗

    if 'ylyl' in subject or 'YLYL' in subject:
    for post in thread.all_posts:
        if post.has_file:
            print(post.filename)
            for filename in os.listdir(cwd):
                print(filename)
                if filename != post.filename:
                    url = post.file_url
                    wget.download(url)
                    time.sleep(1.03)

Answer 1

我想你可以把密码改成

if 'ylyl' in subject or 'YLYL' in subject:
    for post in thread.all_posts:
        if post.has_file:
        print(post.filename)
        # changed at here
        if post.filename not in os.listdir(cwd):
            url = post.file_url
            wget.download(url)
            time.sleep(1.03)