feat: app

app.py

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+import os
+import tempfile
+import hashlib
+import gradio as gr
+import yt_dlp
+
+
+def download(url: str) -> str:
+    if not url:
+        raise gr.Error("Please input a YouTube URL")
+
+    hash = hashlib.md5(url.encode()).hexdigest()
+    tmp_file = os.path.join(tempfile.gettempdir(), f"{hash}")
+
+    ydl_opts = {
+        "format": "bestaudio/best",
+        "outtmpl": tmp_file,
+        "postprocessors": [
+            {
+                "key": "FFmpegExtractAudio",
+                "preferredcodec": "mp3",
+                "preferredquality": "192",
+            }
+        ],
+    }
+
+    with yt_dlp.YoutubeDL(ydl_opts) as ydl:
+        ydl.download([url])
+
+    return tmp_file + ".mp3"
+
+
+with gr.Blocks() as app:
+    url = gr.Textbox(lines=1, label="Enter URL")
+    btn = gr.Button("Download", variant="primary")
+    audio = gr.Audio(type="filepath", label="Downloaded Audio", format="mp3")
+
+    btn.click(fn=download, inputs=[url], outputs=[audio])
+
+app.launch(show_error=True)

requirements.txt

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+gradio
+yt_dlp