import gradio as gr

# Minimal repro: a `gr.Number` output cached via `gr.Examples` with a NEGATIVE value.
# Click the example below -> json.decoder.JSONDecodeError in Number.read_from_flag.
# Cause: sanitize_value_for_csv prepends a "'" to the "-0.5678" string in log.csv,
# so read_from_flag does json.loads("'-0.5678") on read-back and crashes.
# Flip the fn to return a positive number (e.g. 0.5678) and it works fine.

demo = gr.Interface(
    fn=lambda x: -0.5678,   # any negative number
    inputs=gr.Textbox(),
    outputs=gr.Number(),
    examples=[["hi"]],
    cache_examples=True,
)

if __name__ == "__main__":
    demo.launch()