update setup and add debugging

.gitignore

@@ -32,6 +32,7 @@ __pycache__/
 
 # C extensions
 *.so
+tmp
 
 # Distribution / packaging
 .Python

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Debug Example",
+            "type": "python",
+            "request": "launch",
+            "program": "./example.py",
+            "console": "integratedTerminal"
+        }
+    ]
+}