Update app.py

app.py

@@ -1,7 +1,6 @@
 from fastapi import FastAPI, HTTPException
 from fastapi.responses import StreamingResponse
 import qrcode
-from PIL import Image
 import io
 
 app = FastAPI()
@@ -20,10 +19,10 @@ async def generate_qr(text: str):
     qr.add_data(text.strip())
     qr.make(fit=True)
 
-    qr_image = qr.make_image(fill_color="#0057D8", back_color="white").convert("RGB")
+    img = qr.make_image(fill_color="#0057D8", back_color="white").convert("RGB")
 
-    buffer = io.BytesIO()
-    qr_image.save(buffer, format="PNG")
-    buffer.seek(0)
+    buf = io.BytesIO()
+    img.save(buf, format="PNG")
+    buf.seek(0)
 
-    return StreamingResponse(buffer, media_type="image/png")
+    return StreamingResponse(buf, media_type="image/png")