Allow csv_path to be a file-like object as well

[jonathan-s]

Sometimes you don't have the CSV on disk but in memory. In instances like that it would be useful to be able to provide a file like object instead of first writing the csv to disk and then provide the path.

[palewire]

Do you see this as distinct from #25?

[jonathan-s]

I had a look at that, and it looked like the person was suggesting a signature of CopyMapping in the following way CopyMapping(model=Entry, data=huge_list_of_unsaved_entries). Because of that signature suggestion I got unsure whether the author wanted something different than I did.

I wouldn't change the signature at all, instead I'd keep csv_path but check whether that argument is in fact a file-like object. If it is, I'd handle it as such.

If that sounds like an acceptable way of doing things, I'll submit something in the next few days.

[palewire]

You're right, though if I understand it right the solution proposed lower down in the thread ultimately uses a StringIO object, which I presume is something similar to what you're thinking.

If that's right, your file object approach might provide a crucial building block to tackle that more complex "list of objects" challenge. If you have an idea, I say go for it!