Currently, I am writing my master thesis at a German university. My work has a lot of to do with programming. However, there are some parts I need, but it is not part of my work. For this case, my supervisor told me if I need anything I can ask him and he will do this for me (as long as it is not part of my topic).
Unfortunately, the quality of work my supervisor delivers me is very bad. Basically, I would do it by myself, however the time scheduling is quite tight, which is why I am quite thankful that he tries to support me.
How can I handle this without making him angry or upset. I am quite thankful that he "helps" me, but when I look at the quality, I am thinking that I could have just done the work myself.
I still have to work with my adviser for about half a year more.