created a docker file with python 3.10.9

Dockerfile

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+FROM python:3.10.9
+
+WORKDIR /code
+
+COPY ./requirements.txt /code/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+
+COPY . .
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]

Procfile

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+web: gunicorn -w 4 -k uvicorn.workers.UvicornWorker main:app

main.py

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+import os 
+import subprocess
+from fastapi import FastAPI, UploadFile, File
+from fastapi.responses import FileResponse
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI()
+
+# Set up CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # Allows all origins
+    allow_credentials=True,
+    allow_methods=["*"],  # Allows all methods
+    allow_headers=["*"],  # Allows all headers
+)
+
+@app.post("/experiments/remove-background/")
+async def remove_background(file: UploadFile = File(...)):
+    input_path = f"temp/{file.filename}"
+    output_path = f"temp/no-bg-{file.filename}"
+
+    # Ensure the temp folder exists
+    os.makedirs(os.path.dirname(input_path), exist_ok=True)
+
+    # Save the uploaded file
+    with open(input_path, "wb") as buffer:
+        buffer.write(await file.read())
+
+    # Run rembg command
+    subprocess.run(["rembg", "i", input_path, output_path], check=True)
+
+    # Return the processed file
+    return FileResponse(output_path)
+
+# import subprocess
+# subprocess.run(["rembg", "i", input_path, output_path], check=True)

requirements.txt

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+aiofiles==23.2.1
+aiohttp==3.9.1
+aiosignal==1.3.1
+altair==5.2.0
+annotated-types==0.6.0
+anyio==3.7.1
+async-timeout==4.0.3
+asyncer==0.0.2
+attrs==23.1.0
+certifi==2023.11.17
+charset-normalizer==3.3.2
+click==8.1.7
+colorama==0.4.6
+coloredlogs==15.0.1
+contourpy==1.2.0
+cycler==0.12.1
+exceptiongroup==1.2.0
+fastapi==0.105.0
+ffmpy==0.3.1
+filelock==3.13.1
+filetype==1.2.0
+flatbuffers==23.5.26
+fonttools==4.46.0
+frozenlist==1.4.0
+fsspec==2023.12.2
+gradio==4.8.0
+gradio_client==0.7.1
+gunicorn==21.2.0
+h11==0.14.0
+httpcore==1.0.2
+httpx==0.25.2
+huggingface-hub==0.19.4
+humanfriendly==10.0
+idna==3.6
+imageio==2.33.1
+importlib-resources==6.1.1
+Jinja2==3.1.2
+jsonschema==4.20.0
+jsonschema-specifications==2023.11.2
+kiwisolver==1.4.5
+lazy_loader==0.3
+llvmlite==0.41.1
+markdown-it-py==3.0.0
+MarkupSafe==2.1.3
+matplotlib==3.8.2
+mdurl==0.1.2
+mpmath==1.3.0
+multidict==6.0.4
+networkx==3.2.1
+numba==0.58.1
+numpy==1.26.2
+onnxruntime==1.16.3
+opencv-python-headless==4.8.1.78
+orjson==3.9.10
+packaging==23.2
+pandas==2.1.4
+Pillow==10.1.0
+platformdirs==4.1.0
+pooch==1.8.0
+protobuf==4.25.1
+pydantic==2.5.2
+pydantic_core==2.14.5
+pydub==0.25.1
+Pygments==2.17.2
+PyMatting==1.1.12
+pyparsing==3.1.1
+python-dateutil==2.8.2
+python-multipart==0.0.6
+pytz==2023.3.post1
+PyYAML==6.0.1
+referencing==0.32.0
+rembg==2.0.53
+requests==2.31.0
+rich==13.7.0
+rpds-py==0.13.2
+scikit-image==0.22.0
+scipy==1.11.4
+semantic-version==2.10.0
+shellingham==1.5.4
+six==1.16.0
+sniffio==1.3.0
+starlette==0.27.0
+sympy==1.12
+tifffile==2023.12.9
+tomlkit==0.12.0
+toolz==0.12.0
+tqdm==4.66.1
+typer==0.9.0
+typing_extensions==4.9.0
+tzdata==2023.3
+urllib3==2.1.0
+uvicorn==0.24.0.post1
+watchdog==3.0.0
+websockets==11.0.3
+yarl==1.9.4

runtime.txt

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+python-3.10.9