Python 폴더에서 파일을 재귀적으로 읽고 내용을 쓰는 방법은 무엇입니까?

<code class="python">import os

def read_folder_recursively(rootdir):
    for root, subdirs, files in os.walk(rootdir):
        for folder in subdirs:
            # Define the output file path within the current subfolder
            outfileName = os.path.join(root, folder, "py-outfile.txt")
            with open(outfileName, 'w') as folderOut:
                print("outfileName is " + outfileName)
                for file in files:
                    filePath = os.path.join(root, file)
                    with open(filePath, 'r') as f:
                        toWrite = f.read()
                        print("Writing '" + toWrite + "' to" + filePath)
                        folderOut.write(toWrite)
                    f.close()
            folderOut.close()</code>