On 01:33 am, nathan.stocks@gmail.com wrote:

I just want to do some basic text-file manipulations without blocking the rest of twisted.

I've found "FilePath", which has an open()...which is undocumented:

http://twistedmatrix.com/documents/current/api/twisted.python.filepath.FileP...

Is that what I should be using???

Yes and no. Yes, you should use it, FilePath is great. No, it won't solve your problem. The APIs in FilePath will just block. Asynchronous file I/O is a thorny problem, and Twisted doesn't have a canned solution for it. The quick answer is "do it in a subprocess or a thread". I'll save you time on the long answer, since it's a meandering exploration of a dozen platform-specific half-broken under- or un- documented APIs, that ends with "Oh, I guess you have to do it in a subprocess or a thread." Hope that helps :).