Translations:Manual:Creating parametric objects/10/en

One last thing is important to remember: When you create such parametric objects in a FreeCAD document, when you save the file, the python code above is not stored inside the file. This is for security reasons, if a FreeCAD file contained code, it would be possible for someone to distribute FreeCAD files containing malicious code that could harm other people's computers. So, if you distribute a file that contains objects made with the above code, such code must also be present on the computer that will open the file. The easiest way to achieve that is usually to save the code above in a macro, and distribute the macro together with your FreeCAD file, or share your macro on the FreeCAD macros repository where anybody can download it.