Whisper STT extensions does not work by the gradio/blocks.py

[SnowMasaya]

Describe the bug

I check the whisper stt on the docker container.

I refer the following instruction to make my environments

• https://nvidia-ai-iot.github.io/jetson-generative-ai-playground/tutorial_text-generation.html

I check the whisper stt but it has the following error

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/gradio/routes.py", line 488, in run_predict
    output = await app.get_blocks().process_api(
  File "/usr/local/lib/python3.8/dist-packages/gradio/blocks.py", line 1434, in process_api
    data = self.postprocess_data(fn_index, result["prediction"], state)
  File "/usr/local/lib/python3.8/dist-packages/gradio/blocks.py", line 1335, in postprocess_data
    prediction_value = block.postprocess(prediction_value)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/audio.py", line 356, in postprocess
    file_path = self.make_temp_copy_if_needed(y)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/base.py", line 226, in make_temp_copy_if_needed
    temp_dir = self.hash_file(file_path)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/base.py", line 190, in hash_file
    with open(file_path, "rb") as f:
FileNotFoundError: [Errno 2] No such file or directory: ''

The following part is the root cause of this error

• https://github.com/gradio-app/gradio/blob/ba4c6d9e65138c97062d1757d2a588c4fc449daa/gradio/blocks.py#L1339

It works after I fix the code following like this

if prediction_value == "":
    prediction_value = None
else:
    prediction_value = block.postprocess(prediction_value)

Best

Is there an existing issue for this?

• [X] I have searched the existing issues

Reproduction

Prepare the Jetson

Jetson AGX Orin Developer Kit or Jetson Orin Nano Developer Kit.

• With sufficient storage space (preferably with NVMe SSD).
• Running JetPack 5.x
  • JetPack 5.1 (L4T r35.2.1)
  • JetPack 5.1.1 (L4T r35.3.1)
  • JetPack 5.1.2 (L4T r35.4.1)

Set up

Please the follow the instruction for setting up environments

• https://nvidia-ai-iot.github.io/jetson-generative-ai-playground/tutorial_text-generation.html

Access the docker

Running container and set up env value

cd jetson-containers
./run.sh $(./autotag text-generation-webui)

exit container by the Ctrl + C

Run the container for set up environments for whisper

docker run --name text_generation_webui  --runtime nvidia -it --rm --network=host dustynv/text-generation-webui:r35.4.1 bash

Install library

apt-get update
apt-get install -y ffmpeg vim
cd /opt/text-generation-webui/extensions/whisper_stt
pip install -r requirements.txt

Run the text-generation-web-ui

cd /opt/text-generation-webui && python3 server.py   --model-dir=/data/models/text-generation-webui   --chat   --listen --extensions riva_asr

Whisper ASR work on the GUI

Screenshot

No response

Logs

I have the following error 

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/gradio/routes.py", line 488, in run_predict
    output = await app.get_blocks().process_api(
  File "/usr/local/lib/python3.8/dist-packages/gradio/blocks.py", line 1434, in process_api
    data = self.postprocess_data(fn_index, result["prediction"], state)
  File "/usr/local/lib/python3.8/dist-packages/gradio/blocks.py", line 1335, in postprocess_data
    prediction_value = block.postprocess(prediction_value)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/audio.py", line 356, in postprocess
    file_path = self.make_temp_copy_if_needed(y)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/base.py", line 226, in make_temp_copy_if_needed
    temp_dir = self.hash_file(file_path)
  File "/usr/local/lib/python3.8/dist-packages/gradio/components/base.py", line 190, in hash_file
    with open(file_path, "rb") as f:
FileNotFoundError: [Errno 2] No such file or directory: ''

### System Info

```shell
Jetson AGX Orin Developer Kit

- https://www.nvidia.com/en-us/autonomous-machines/embedded-systems/jetson-orin/

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[SodaPrettyCold]

You saved my ass! I've been reinstalling all day trying to figure out what I'm doing wrong!