Thanks Nick, I also realised this on the way home from work! All sorted now. Best wishes, Graeme On 14 Jan 2013, at 16:39, Nicholas Sauter wrote:

Graeme,

The problem in your example is that the fetch() function call returns a new phil object; it does not modify its own class instance. Therefore you can get what you want by calling working_phil.fetch(parse(more)).show().

Nick

On Mon, Jan 14, 2013 at 8:15 AM, wrote:

...

Hi Folks,

I have a toy example where I should be overriding Phil defaults:

phil_defaults = ''' resolutionizer { rmerge = 0.0 .type = float completeness = 0.0 .type = float isigma = 1.0 .type = float misigma = 2.0 .type = float bins = 100 .type = int } '''

more = ''' resolutionizer { isigma = 2.0 misigma = 4.0 } '''

from libtbx.phil import parse

working_phil = parse(phil_defaults) working_phil.fetch(parse(more)) working_phil.show()

but it seems I am not:

Graemes-MacBook-Pro:scale graeme$ cctbx.python toy.py resolutionizer { rmerge = 0.0 completeness = 0.0 isigma = 1.0 misigma = 2.0 bins = 100 }

Am I doing something dumb? I hope so as I really cannot find my error.

Thanks,

Graeme

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