include pythonnet runtime DLLs in build process to prevent missing dependencies

build.py

@@ -44,6 +44,21 @@ def build(build: bool = True, copy: bool = True, test: bool = False, dest: str |
             except Exception as e:
                 print(f"Warning: couldn't locate dicognito package: {e}")
 
+            # Try to include pythonnet runtime DLLs to avoid missing
+            # Python.Runtime.dll at runtime (used by pythonnet / webview).
+            add_binary_args = []
+            try:
+                spec_py = importlib.util.find_spec("pythonnet")
+                if spec_py and spec_py.submodule_search_locations:
+                    pn_path = Path(spec_py.submodule_search_locations[0])
+                    runtime_dir = pn_path / "runtime"
+                    if runtime_dir.exists():
+                        for f in runtime_dir.rglob("*.dll"):
+                            # PyInstaller on Windows expects 'src;dest'
+                            add_binary_args += ["--add-binary", f"{str(f)};pythonnet\\runtime"]
+            except Exception as e:
+                print(f"Warning: couldn't locate pythonnet runtime: {e}")
+
             PyInstaller.__main__.run([
                 str(project_root / "nice.py"),
                 "--onefile",
@@ -55,7 +70,7 @@ def build(build: bool = True, copy: bool = True, test: bool = False, dest: str |
                 str(project_root / "build" / "test"),
                 "--specpath",
                 str(project_root / "build" / "specs"),
-            ] + add_data_args + [
+            ] + add_data_args + add_binary_args + [
                 # add some common hidden imports that PyInstaller sometimes misses
                 "--hidden-import",
                 "bs4",

nice_uploader.spec

@@ -1,16 +1,35 @@
 # -*- mode: python ; coding: utf-8 -*-
 
 import os
+import importlib.util
 from pathlib import Path
 
 here = Path(__file__).resolve().parent
 project_root = here
 
+# Prepare datas and binaries lists; include icon resources
+datas = [(str(project_root / 'icon'), 'icon'), (str(project_root / 'icon' / 'icon1.png'), 'icon')]
+binaries = []
+
+# Try to include pythonnet runtime DLLs so Python.Runtime.dll is available
+try:
+    spec_py = importlib.util.find_spec("pythonnet")
+    if spec_py and spec_py.submodule_search_locations:
+        pn_path = Path(spec_py.submodule_search_locations[0])
+        runtime_dir = pn_path / "runtime"
+        if runtime_dir.exists():
+            for f in runtime_dir.rglob("*.dll"):
+                # destination folder inside the frozen app
+                binaries.append((str(f), "pythonnet/runtime"))
+except Exception:
+    # best-effort; if we can't locate pythonnet at build time, user can add it manually
+    pass
+
 a = Analysis(
     ['nice.py'],
     pathex=[str(project_root)],
-    binaries=[],
-    datas=[(str(project_root / 'icon'), 'icon'), (str(project_root / 'icon' / 'icon1.png'), 'icon')],
+    binaries=binaries,
+    datas=datas,
     hiddenimports=['bs4', 'requests', 'nicegui', 'pynng'],
     hookspath=[],
     hooksconfig={},