Fix Python 3.12+ compatibility issues

- Remove hardcoded PyTorch version constraints that prevent installation on Python 3.12+
- Update scikit-image from 0.21.0 to 0.22.0 to fix build failures with modern meson
- Simplify macOS environment script to use latest compatible PyTorch versions
- Allow pip to resolve PyTorch dependencies automatically for better compatibility

Fixes installation failures on newer Python versions where PyTorch 2.1.2 is not available.
Resolves scikit-image build errors due to outdated meson build system requirements.

modules/launch_utils.py

@@ -317,7 +317,11 @@ def requirements_met(requirements_file):
 
 def prepare_environment():
     torch_index_url = os.environ.get('TORCH_INDEX_URL', "https://download.pytorch.org/whl/cu121")
-    torch_command = os.environ.get('TORCH_COMMAND', f"pip install torch==2.1.2 torchvision==0.16.2 --extra-index-url {torch_index_url}")
+    
+    # Use more flexible PyTorch version handling to support newer Python versions
+    default_torch_command = f"pip install torch torchvision --extra-index-url {torch_index_url}"
+    torch_command = os.environ.get('TORCH_COMMAND', default_torch_command)
+    
     if args.use_ipex:
         if platform.system() == "Windows":
             # The "Nuullll/intel-extension-for-pytorch" wheels were built from IPEX source for Intel Arc GPU: https://github.com/intel/intel-extension-for-pytorch/tree/xpu-main

requirements_versions.txt

@@ -23,7 +23,7 @@ psutil==5.9.5
 pytorch_lightning==1.9.4
 resize-right==0.0.2
 safetensors==0.4.2
-scikit-image==0.21.0
+scikit-image==0.22.0
 spandrel==0.3.4
 spandrel-extra-arches==0.1.1
 tomesd==0.1.3

webui-macos-env.sh

@@ -9,9 +9,9 @@ export COMMANDLINE_ARGS="--skip-torch-cuda-test --upcast-sampling --no-half-vae
 export PYTORCH_ENABLE_MPS_FALLBACK=1
 
 if [[ "$(sysctl -n machdep.cpu.brand_string)" =~ ^.*"Intel".*$ ]]; then
-    export TORCH_COMMAND="pip install torch==2.1.2 torchvision==0.16.2"
+    export TORCH_COMMAND="pip install torch torchvision"
 else
-    export TORCH_COMMAND="pip install torch==2.3.1 torchvision==0.18.1"
+    export TORCH_COMMAND="pip install torch torchvision"
 fi
 
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