Hi All, I am attempting to formulate an example method of using my Two Point Functions (née Structure Function Generator) stuff for two point correlations of halos. This means that I want the ability to have multiple Fortran kd trees active at once. However, I think I am running into a namespace issue of Python. See below: In [1]: import yt.extensions.kdtree as One In [2]: One.fKD.pos = na.random.random((3,100)) In [3]: One.fKD.pos.shape Out[3]: (3, 100) In [5]: import yt.extensions.kdtree as Two In [6]: Two.fKD.pos = na.random.random((3,200)) In [7]: Two.fKD.pos.shape Out[7]: (3, 200) In [8]: One.fKD.pos.shape Out[8]: (3, 200) (In [4] was a typo) This isn't just a Forthon issue: In [1]: import numpy as na In [2]: na.NaN Out[2]: nan In [3]: na.NaN = 8 In [4]: na.NaN Out[4]: 8 In [5]: import numpy as np In [6]: np.NaN Out[6]: 8 I want np.NaN==NaN, not 8. Does anyone know of a way around this? Thanks! _______________________________________________________ sskory@physics.ucsd.edu o__ Stephen Skory http://physics.ucsd.edu/~sskory/ _.>/ _Graduate Student ________________________________(_)_\(_)_______________