如何在 iPython window 中执行 windows 'move' 命令？

Question

I have a simple script that I need to move a file from the current path to a new folder at the current path in iPython note book.

!move current_file_name NEW_FOLDER

current_file_name exists and NEW_FOLDER exists, however, I keep getting an error message

"The system cannot find the file specified."

When I checked the validity of paths, they are all true. This command works fine at the windows command prompt (without '.' sign).

My complete code:

import wget
MODEL_ZOO_NAME_PATH = 'http://download.tensorflow.org/models/object_detection/tf2/20200711/ssd_mobilenet_v2_320x320_coco17_tpu-8.tar.gz'
model_zoo_name = wget.download(MODEL_ZOO_NAME_PATH)
if os.path.exists(model_zoo_name):
    print('Modal file name: ',model_zoo_name)
    !move model_zoo_name PRETRAINED_MODEL_PATH
    !cd {PRETRAINED_MODEL_PATH} && tar -zxvf model_zoo_name

Output:

Answer 1

You're passing the actual model_zoo_name string value to the shell, not the contents of that variable. Use $model_zoo_name or {model_zoo_name} to get the contents (the second form supports arbitrary python expressions).