pytorch/examples

OSError: [Errno 22] Invalid argument:

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#887 opened on Feb 14, 2021

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 (3 comments) (0 reactions) (0 assignees)Python (9,429 forks)batch import
good first issue

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Description

https://github.com/pytorch/examples/blob/36441a83b6595524a538e342594ee6482754f374/fast_neural_style/neural_style/neural_style.py#L117

Spent 2 hours training a model for it to fail the save with error prefixed with OSError: [Errno 22] Invalid argument :(

For now I'm just adding fail-safe but I am sure it can be written cleaner

custom_save_path = save_model_path
while True:
    try:
        torch.save(transformer.state_dict(), custom_save_path)
        break
    except:
        print("Please enter new save path:")
        custom_save_path = input() 

print("\nDone, trained model saved at", custom_save_path)

Contributor guide

Research direction
The error occurs at line 117 of neural style.py when saving the model. The OSError with errno 22 indicates an invalid argument, often due to invalid file path or permissions. Investigate the save model path variable and ensure it is a valid, writable path. Consider adding a try except to catch the error and provide a helpful message, or validate the path before saving. Check if the issue is platform specific (e.g., Windows path restrictions). Also review the linked PRs or comments for additional context.
Tech stack
python
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
PythonPyTorchFile system basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50