Merge pull request #340 from learnleapfly/dont_delete_py

Fix Module/Name Not Found errors

tools/templates/{{ cookiecutter.project_name }}-ios/main.m

@@ -26,6 +26,7 @@ int main(int argc, char *argv[]) {
 
     // Special environment to prefer .pyo, and don't write bytecode if .py are found
     // because the process will not have a write attribute on the device.
+    putenv("PYTHONOPTIMIZE=2");
     putenv("PYTHONDONTWRITEBYTECODE=1");
     putenv("PYTHONNOUSERSITE=1");
     putenv("PYTHONPATH=.");