Update app.py

app.py

@@ -24,12 +24,16 @@ import requests
 
 try:
     from realesrgan import RealESRGAN
-except ImportError:
-    import subprocess
-    subprocess.run([sys.executable, "-m", "pip", "install", "torchvision==0.16.0"], check=True)
-    subprocess.run(["git", "clone", "https://github.com/xinntao/Real-ESRGAN.git", "/tmp/Real-ESRGAN"], check=True)
-    subprocess.run([sys.executable, "-m", "pip", "install", "-r", "/tmp/Real-ESRGAN/requirements.txt"], check=True)
-    subprocess.run([sys.executable, "setup.py", "develop"], cwd="/tmp/Real-ESRGAN", check=True)
+except (ImportError, ModuleNotFoundError):
+    degradations_file = "/usr/local/lib/python3.10/site-packages/basicsr/data/degradations.py"
+    with open(degradations_file, "r") as f:
+        content = f.read()
+    content = content.replace(
+        "from torchvision.transforms.functional_tensor import rgb_to_grayscale",
+        "from torchvision.transforms.functional import rgb_to_grayscale"
+    )
+    with open(degradations_file, "w") as f:
+        f.write(content)
     from realesrgan import RealESRGAN
 
 def download_file(url, folder_path, filename):