Re: getting bytes from c into pyroot

Andy,

> The TString class solves this problem by providing a constructor taking a
> char* and a size.

as does the Python C-API string manipulation functions. Problem is that in the dictionary, there is nothing more on the 'char*' return that indicates it is a byte-buffer rather than a string (which is by far the more common case), and of course a length can not be had.

What is the use case here? The reason I'm asking is that the pickling of ROOT objects works by serializing them into a TBufferFile, and then stuffing its Buffer() result into a python string, using the length.

> Is there some wrapper function like that in PyROOT that
> I've overlooked, or is there some other way to get handle arrays/strings
> containing nulls?

No, nothing of the kind exists (other than the pickling described above), so you'd have to add such a wrapper yourself, using something like:

    PyString_FromStringAndSize( buff->Buffer(), buff->Length() );

Best regards,

            Wim

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