Installation on Apple Silicon (M1/M2)

[ZryletTC]

Sorry if this is something that you're already aware of/have addressed but I had issues following the installation guidelines today due to being on an Apple Silicon machine and couldn't find anything about it being previously reported.

Instead of the instructions listed on your website:

conda create --name=pdfgui2 python=3.9
conda activate pdfgui2
conda install -c conda-forge diffpy.pdfgui

I had to run CONDA_SUBDIR=osx-64 conda create -n pdfgui2 python=3.9 diffpy.pdfgui -c conda-forge

I was hoping a note could be added to the website for future users with Apple Silicon chips, or better yet, the package could be built for osx-arm64.

[Joweke]

This was a lifesaver for me – tried multiple ways always getting an error on the install line until a colleague pointed me to this. Thank you!

[Joweke]

spoke too soon. when i got into the program, trying to run a fit, plot a fit, or even trying to copy a result value returned this:

Traceback (most recent call last): File "/opt/anaconda3/envs/pdfgui2/lib/python3.9/site-packages/diffpy/pdfgui/gui/errorwrapper.py", line 62, in _f return func(*args, **kwargs) File "/opt/anaconda3/envs/pdfgui2/lib/python3.9/site-packages/diffpy/pdfgui/gui/mainframe.py", line 1636, in disableMainMenuItems if not cdata.Gcalc: File "/opt/anaconda3/envs/pdfgui2/lib/python3.9/site-packages/diffpy/pdfgui/control/fitdataset.py", line 666, in _get_Gcalc self._updateRcalcSampling() File "/opt/anaconda3/envs/pdfgui2/lib/python3.9/site-packages/diffpy/pdfgui/control/fitdataset.py", line 595, in _updateRcalcSampling newGcalc = grid_interpolation(self._rcalc, self._Gcalc, newrcalc) File "/opt/anaconda3/envs/pdfgui2/lib/python3.9/site-packages/diffpy/pdfgui/control/fitdataset.py", line 772, in grid_interpolation x0 = numpy.array(x0, copy=False, dtype=float) ValueError: Unable to avoid copy while creating an array as requested. If using np.array(obj, copy=False)replace it withnp.asarray(obj)to allow a copy when needed (no behavior change in NumPy 1.x). For more details, see https://numpy.org/devdocs/numpy_2_0_migration_guide.html#adapting-to-changes-in-the-copy-keyword.

[bobleesj]

@sbillinge Please also include this to the 3.1.0 milestone!

[sbillinge]

This should be fixed with the latest release. Move to full release and ask the OPs to test on the pre-release

[sbillinge]

@ZryletTC please could you see if this bug is fixed in the latest version of the code? We have a pre-release version that we are testing.

To install it, please use these instructions:

Installation instructions (Windows, Linux, macOS non-arm64):

conda create -n pdfgui313rc python=3.13
conda activate pdfgui313rc
conda install wxpython diffpy.utils diffpy.pdffit2 matplotlib-base pycifrw
pip install diffpy.pdfgui==3.1.0rc8 --no-deps

Instructions for Mac-OS arm64:

conda create -n pdfgui313rc python=3.13
conda activate pdfgui313rc
conda install wxpython diffpy.utils matplotlib-base pycifrw
pip install diffpy.pdffit2
pip install diffpy.pdfgui==3.1.0rc8 --no-deps

Thanks so much!

[ZryletTC]

Sorry, been a bit busy but I'll try it out this weekend!

[sbillinge]

Thanks so much.

[ZryletTC]

Looks good to me!

It installed and ran fine. Went through Lesson 1 of the tutorial without any issues.

[sbillinge]

Thanks so much! Closing as fixed.