[GitHub] juliusshufan opened a new issue #10952: The params can't be saved as expected when using --model-prefix for all the training script belonging to example/image-classification

[GitBox <gi...@apache.org>]

juliusshufan opened a new issue #10952: The params can't be saved as expected when using --model-prefix for all the training script belonging to example/image-classification
URL: https://github.com/apache/incubator-mxnet/issues/10952
 
 
   ## Description
   When executing the script at example\image-classification with option --model-prefix, a python run time error will happen and params can't be saved either.
   
   ## Environment info (Required)
   CentOS 7.2 
   
   ```
   What to do:
   Taking the train_mnist.py as an example, simply run:
   python train_mnist.py --model-prefix='mnist'
   ```
   
   Package used (Python/R/Scala/Julia):
   I'm using Python
   
   ## Build info (Required if built from source)
   gcc 4.8.5
   
   MXNet commit hash:
   0fb57ff31ef5caa32edf973213bde8a8faba85e5
   
   Build config:
   make -j($nproc) USE_BLAS=openblas USE_OPENCV=1 
   
   ## Error Message:
   Traceback (most recent call last):
     File "train_mnist.py", line 96, in <module>
       fit.fit(args, sym, get_mnist_iter)
     File "/ec/fm/disks/nrv_algo_home01/shufanwu/workspace/mxnet/v2/example/image-classification/common/fit.py", line 183, in fit
       checkpoint = _save_model(args, kv.rank)
     File "/ec/fm/disks/nrv_algo_home01/shufanwu/workspace/mxnet/v2/example/image-classification/common/fit.py", line 72, in _save_model
       os.mkdir(dst_dir)
   FileNotFoundError: [Errno 2] No such file or directory: ''
   
   ## Steps to reproduce
   Taking the train_mnist.py as an example, simply run:
   python train_mnist.py --model-prefix='mnist'
   
   ## What have you tried to solve it?
   See PR https://github.com/apache/incubator-mxnet/pull/10922 
   

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