Fix: Enhance Windows installation with NEURON DLL detection and add CSV data files to package

Author: RaulSimpetru

CHANGELOG.md

@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.6.10] - 2025-12-16
+
+### Fixed
+- **Windows Installation**: Added NEURON DLL detection in setup.py
+  - Verifies NEURON can be imported before compilation
+  - Provides clear PATH configuration instructions if DLLs not found
+  - Resolves "DLL load failed while importing hoc" error
+- **Package Data**: Added CSV files to package distribution
+  - Includes voronoi_pi1e5.csv and other data files
+  - Added to both MANIFEST.in and pyproject.toml package-data
+
 ## [0.6.9] - 2025-12-16
 
 ### Fixed

MANIFEST.in

@@ -20,3 +20,6 @@ recursive-include myogen *.pxd
 
 # Include YAML configuration files
 recursive-include myogen *.yaml
+
+# Include CSV data files
+recursive-include myogen *.csv

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "MyoGen"
-version = "0.6.9"
+version = "0.6.10"
 description = "Modular and extensible neuromuscular simulation framework for generating physiologically grounded motor-unit activity, muscle force, and EMG signals (surface and intramuscular)"
 readme = "README.md"
 requires-python = ">=3.12"
@@ -114,6 +114,7 @@ myogen = [
     "**/*.so",
     "**/*.o",
     "**/*.yaml",
+    "**/*.csv",
     "**/x86_64/*",
     "**/x86_64/.libs/*",
     "**/aarch64/*",

setup.py

@@ -68,6 +68,26 @@ def compile_nmodl(self):
 
     def _compile_nmodl_windows(self, nmodl_path):
         """Compile NMODL on Windows."""
+        # First, verify NEURON can be imported (checks DLLs are accessible)
+        try:
+            import neuron
+            from neuron import h
+        except ImportError as e:
+            raise ImportError(
+                "\n" + "="*70 + "\n"
+                "NEURON import failed - DLL not found\n"
+                "="*70 + "\n\n"
+                "NEURON is installed but cannot load DLLs.\n\n"
+                "Please add NEURON's bin directory to your PATH:\n"
+                "1. Search for 'Environment Variables' in Windows\n"
+                "2. Edit 'Path' in System Variables\n"
+                "3. Add: C:\\nrn\\bin (or your NEURON install location)\n"
+                "4. Restart your terminal/IDE\n"
+                "5. Retry: pip install myogen\n\n"
+                f"Original error: {e}\n"
+                "="*70 + "\n"
+            ) from e
+
         # Try to find NEURON installation
         neuron_homes = [
             Path(os.environ.get("NEURONHOME", "")),