diff --git a/Source/PythonEngine.pas b/Source/PythonEngine.pas
index 9e0343da..bb9f622a 100644
--- a/Source/PythonEngine.pas
+++ b/Source/PythonEngine.pas
@@ -1991,8 +1991,8 @@   TPythonInterface=class(TDynamicDll)
   DEFAULT_DATETIME_CONVERSION_MODE = dcmToTuple;
   DEFAULT_FLAGS =
     {$IFDEF IOS}
-    [pfIsolated, pfNoUserSiteDirectory, pfIgnoreEnvironment,
-    pfDontWriteBytecodeFlag]
+    [pfIsolated, pfNoUserSiteDirectory, pfIgnoreEnvironment]//,
+    //pfDontWriteBytecodeFlag]
     {$ELSE}
     []
     {$ENDIF IOS};