python-unidiff requires to separate diff to lines

[cool-RR]

I have a diff file in a string in memory, and I tried to do unidiff.PatchSet(diff_contents) but it failed. After investigating I realized that I need to do unidiff.PatchSet(diff_contents.readlines()) to make it work. It'll be nice if the readlines call wouldn't be needed.

[matiasb]

Well, the init method expects a file-like object, that's why. An option would be to have a from_string class method to initialize from a string.