App cannot access uploaded files

Spaces
1

Hi! I am trying to create a super-basic Space as an example for my students. In fact, I already have such a Space from last year, but I tried replicating it just in case and I am having trouble with uploaded images.

Relevant info:

  • I am working from the HF front, as my students have limited experience.
  • I am uploading images using the “+ Add File” button. Files are, by default, at root level (same as app.py).
  • If I set “examples” as an empty list then the Space works just fine.
  • I also tried using a list of lists in “examples”, as suggested by GPT.
  • Error message (when using only one image): “ValueError: File /home/user/app/french.jpg is not in the upload folder and cannot be accessed.”

This is the Space in question (currently not working, but you should be able to look at the files):

For extra convenience, here you have the code directly:

import gradio as gr
from fastai.vision.all import *
from huggingface_hub import from_pretrained_fastai


learn = from_pretrained_fastai("Pablogps/gradio-test-24")
labels = learn.dls.vocab


def predict(img):
    img = PILImage.create(img)
    pred, pred_idx, probs = learn.predict(img)
    return {labels[i]: float(probs[i]) for i in range(len(labels))}


title = "Bad castle predictor"
description = "A bad model that tries to identify the type of castle."
examples = ['spanish.jpg', 'french.jpg', 'japanese.jpg']

gr.Interface(
    fn=predict,
    inputs=gr.Image(),
    outputs=gr.Label(num_top_classes=3),
    title=title,
    description=description,
    examples=examples,
).launch()
iface.launch()
2

Before the code error, some of the uploaded files don’t have file extensions and are misnamed, like “spanish”.
Also, you only need to do launch() once.

).launch()
iface.launch()

to

).launch()