micropython esp32 拷贝文件到另外一个目录下

def _copy_file(fromPath, toPath):
  with open(fromPath) as fromFile:
    with open(toPath, 'w') as toFile:
        CHUNK_SIZE = 512 # bytes
        data = fromFile.read(CHUNK_SIZE)
        while data:
            toFile.write(data)
            data = fromFile.read(CHUNK_SIZE)
    toFile.close()
  fromFile.close()

_copy_file("123.py", "libs/123.py")