AssertionError: the weights_path models/epoch1.pdparams is not existed!

Question

AssertionError: the weights_path models/epoch1.pdparams is not existed!

Answer 1

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This AssertionError indicates that the file models/epoch1.pdparams which is expected to be the weights path does not exist in your Python program. Here are some possible reasons and solutions:

Possible Reasons:

1. Incorrect File Path:

   • The models directory might not be in the correct location relative to the Python script. For example, if your script is in a different directory and you are not specifying the correct relative or absolute path to the models directory.
   • Example: If your Python script is in the src directory and you are trying to access models/epoch1.pdparams without taking into account the relative path difference.

2. File Deleted or Not Created:

   • The file might have been accidentally deleted.
   • Or the process that was supposed to create the epoch1.pdparams file did not run successfully. For instance, if there was an error during a training process that was supposed to generate this weights file.

3. Permissions Issue:

   • The user running the Python script may not have the appropriate permissions to access the models directory or the file within it. This can happen if the directory has restricted access rights.

Solutions:

1. Verify the File Path:

   • Use os.path.exists in Python to check if the file exists.
   • Example:
     ```python
     import os

   weights_path = "models/epoch1.pdparams"
   if not os.path.exists(weights_path):

   print(f"The file {weights_path} does not exist. Please check the path.")
   

   ```

   • If the file is in a different location, adjust the path accordingly. For example, if the models directory is in the parent directory of the script, you can use os.path.join(os.pardir,'models', 'epoch1.pdparams').

2. Check for Creation or Deletion:

   • If the file was supposed to be created during a previous process, review the code for that process. For example, if it was created during a training loop, check for any errors in the training code that might have prevented the file from being saved.
   • If the file was deleted accidentally, you may need to restore it from a backup if available.

3. Permissions:

   • Ensure that the user running the Python script has read access to the models directory and the file. If necessary, change the permissions of the directory and file. For example, on a Unix - like system, you can use chmod to change the permissions.
   • Example: chmod +r models/epoch1.pdparams (this requires appropriate administrative rights).