https://www.update.rocks/blog/fixing-the-python3/

If you are using electron-packager or electron-forge, you might encounter the following error :

 An unhandled rejection has occurred inside Forge:
Error: /var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/electron-packager/darwin-x64/electron-example-darwin-x64-5AYzr2/Electron.app/Contents/Resources/app/node_modules/macos-alias/build/node_gyp_bins/python3: file "../../../../../../../../../../../../../Library/Frameworks/Python.framework/Versions/3.11/bin/python3.11" links out of the package
This error is showing when trying to package an electron application for macOS with Electron Forge. It takes its root in electron-packager and is produced by node-gyp like described in this Github issue.

nodejs/node-gyp#2713

forge.config.js

@@ -2,6 +2,7 @@ const { spawnSync } = require("child_process");
 const { generateCLDRData } = require("./tools/precompile.js");
 const { glob } = require('glob');
 const fs = require('fs');
+const path = require('path');
 
 let config = { 
   packagerConfig: {
@@ -142,28 +143,63 @@ let config = {
       }
       return packageJson;
     },
-    packageAfterPrune: async (forgeConfig, buildPath, electronVersion, platform, arch) => {
-        const npmInstall = spawnSync("npm", ["install", "--omit=dev"], {
-          cwd: buildPath,
-          stdio: "inherit",
-          shell: true,
-        });
+    packageAfterPrune: async (
+      forgeConfig,
+      buildPath,
+      electronVersion,
+      platform,
+      arch,
+    ) => {
+      const npmInstall = spawnSync("npm", ["install", "--omit=dev"], {
+        cwd: buildPath,
+        stdio: "inherit",
+        shell: true,
+      });
+
+      // Clear out prebuilds for other architectures
+      // 1) we don't need them
+      // 2) windows binary signing tool blows up when it tries to sign them.
+
+      const prebuilds = glob.GlobSync(`${buildPath}/**/prebuilds/*`);
+      const matchString = new RegExp(`prebuilds/${platform}`);
+      prebuilds.found.forEach(function (path) {
+        if (!path.match(matchString)) {
+          fs.rmSync(path, { recursive: true });
+        }
+      });
+      // Workaround from     https://www.update.rocks/blog/fixing-the-python3/
+      if (platform === "darwin") {
+        // Directory to inspect
+        const dirPath = path.join(
+          buildPath,
+          "node_modules/macos-alias/build/node_gyp_bins",
+        );
+        // Check if the directory exists
+        if (fs.existsSync(dirPath)) {
+          // List files in the directory
+          console.log("Contents of the directory before removal: ");
+          const files = fs.readdirSync(path.join(dirPath));
+          files.forEach((file) => {
+            console.log(file);
+          });
 
-        console.log(buildPath);
+          // Files to remove
+          const filesToRemove = ["python", "python2", "python3"];
 
-        // Clear out prebuilds for other architectures
-        // 1) we don't need them
-        // 2) windows binary signing tool blows up when it tries to sign them.
-
-        const prebuilds = glob.GlobSync(`${buildPath}/**/prebuilds/*`);
-        const matchString = new RegExp(`prebuilds/${platform}`);
-        prebuilds.found.forEach(function(path) {
-            if (! path.match(matchString)) {
-            fs.rmdirSync(path, { recursive: true });
-            } 
-    });
+          // Remove files if they exist
+          filesToRemove.forEach((file) => {
+            const filePath = path.join(dirPath, file);
+            if (fs.existsSync(filePath)) {
+              console.log(`Removing file: ${file}`);
+              fs.unlinkSync(filePath);
+            }
+          });
+        } else {
+          console.log(`Directory not found: ${dirPath}`);
+        }
+      }
+    },
   },
-}
 };
 if (process.env.UNTRUSTED) {
     delete config['packagerConfig']['osxSign'];