目录存在时跳过解压缩/删除解压缩的目录

Question

我有从路径解压缩文件的代码。但是我不知道如何编写代码来跳过或删除已存在已解压缩文件的文件夹。 谢谢你的建议。

    def unzip_file(self, path):
        # Load file - function that reads a GTFS ZIP file. 
        #path = self.dockwidget.input_dir.filePath()
        name = os.path.splitext(os.path.basename(path))[0]
        # Create a folder for files. 
        path1 = os.path.join(os.path.dirname(path), name)
        os.mkdir(path1) 
        # Extracts files to path. 
        with ZipFile(path, 'r') as zip: 
            # printing all the contents of the zip file 
            zip.printdir() 
            zip.extractall(path1) 
        # Select text files only. 
        print(path1)
        print(path)
        files = []
        # r=root, d=directories, f = files
        for r, d, f in os.walk(path1):
            for file in f:
                exten = os.path.splitext(os.path.basename(file))[1]
                if exten == '.txt':
                    files.append(os.path.join(r, file))
        return files

Answer 1

检查os.path.exists(path) 的值并相应地设置您的逻辑。

https://docs.python.org/3.7/library/os.path.html#os.path.exists