Python 3.7 and cmi

[Monica]

Dear all,
The new anaconda 24.9.2 does not contain python 3.7 anymore (it’s no more supported, apparently).
Shall I downgrade anaconda to get python 3.7 or there’s a smarter way to install CMI?

Best to everyone!
Monica
---
Monica Dapiaggi

[Simon Billinge]

This is our summer project....cmi on Python 3.13 (and Windows). We are nearly there.

I think we can do a Linux release on 3.13 right now as it is the last few windows things holding is up. I will look into that this weekend...

Simon Billinge

Professor, 

Department of Applied Physics and Applied Mathematics

Columbia University

On Fri, Apr 25, 2025, 8:18 AM Monica <mdap...@gmail.com> wrote:

Dear all, The new anaconda 24. 9. 2 does not contain python 3. 7 anymore (it’s no more supported, apparently). Shall I downgrade anaconda to get python 3. 7 or there’s a smarter way to install CMI? Best to everyone! Monica --- Monica Dapiaggi --

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Dear all,
The new anaconda 24.9.2 does not contain python 3.7 anymore (it’s no more supported, apparently). 
Shall I downgrade anaconda to get python 3.7 or there’s a smarter way to install CMI?

Best to everyone!
Monica
---
Monica Dapiaggi

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[Monica Dapiaggi]

Thanks, no rush!

Monica 

---

Monica Dapiaggi

Il giorno 25 apr 2025, alle ore 14:21, Simon Billinge <sb2...@columbia.edu> ha scritto:



To view this discussion visit https://groups.google.com/d/msgid/diffpy-users/CANugsUHOPh4CBdw7_mNtho03%3DYrXMVopA1vL41G2ry__00EnYw%40mail.gmail.com.

[Ratel-Ramond Nicolas]

Dear all,

I need to install diffpy-cmi on a remote machine, starting from scratch.

Is there any way to install diffpy-cmi using pip (since Python 3.7 is no longer distributed with anaconda)?

I will try using the information found in the following link.

https://www.diffpy.org/products/diffpycmi/install.html

Meantime, if someone has an idea, I would be happy to hear about it.

Thanks a lot,

Nicolas

To view this discussion visit https://groups.google.com/d/msgid/diffpy-users/9CA9A5FE-CCE4-4D97-B55F-214429B2C84A%40unimi.it.

[Simon Billinge]

Dear Nicolas,

Sorry for the problems.  You can still get Python 3.7 from Conda.  For example, if you install miniconda you can just type `conda create -n py37 python=3.7` and a Python 3.7 environment should be created.

However, we are about a week away from a new pre-release of diffpy.cmi that should work on Python 3.11 at least, and possibly up to 3.13.  I would be happy to share the installation instructions so you can get that version at that time.

S

On Tue, Jun 17, 2025 at 12:37 PM Ratel-Ramond Nicolas <rateln...@gmail.com> wrote:

Dear all, I need to install diffpy-cmi on a remote machine, starting from scratch. Is there any way to install diffpy-cmi using pip (since Python 3. 7 is no longer distributed with anaconda)? I will try using the information found in the following

To view this discussion visit https://groups.google.com/d/msgid/diffpy-users/a6230bb5-1f29-4142-bc7a-db96b0402bf4%40gmail.com.

--

[Nicolas RATEL]

Dear Simon, 

Thanks for your feedback. I succeeded in creating a 3.7 env with conda. 

The new release is very good news. Some times ago you mentioned it would be windows compatible. Will it be the case? 

Best regards, 

Nicolas 

-------- Message original --------
De : Simon Billinge <sb2...@columbia.edu>
Date : dim. 29 juin 2025 à 04:34
À : diffpy...@googlegroups.com
Objet : Re: [diffpy-users] Python 3.7 and cmi

To view this discussion visit https://groups.google.com/d/msgid/diffpy-users/CANugsUFHkkx15oJr40V98tz2gBbKfWSMMUUzQFQn70njeRa6%2Bw%40mail.gmail.com.

[Simon Billinge]

yes, we expect it to be working natively on Windows.   Everyone, please keep your fingers crossed!

 

S

On Sun, Jun 29, 2025 at 6:49 AM Nicolas RATEL <rateln...@gmail.com> wrote:

Dear Simon, Thanks for your feedback. I succeeded in creating a 3. 7 env with conda. The new release is very good news. Some times ago you mentioned it would be windows compatible. Will it be the case? Best regards, Nicolas -------- Message original

[Simon J. L. Billinge]

Just revisiting this.  For early adopters (not heavily tested and the online instructions for installation and use are not updated) there is a Python 3.13 version (and 3.12 and 3.11) of diffpy.cmi that now also works natively on windows.  Please feel free to test it out.  It is in the conda-forge channel.  I think this should successfully install it (you can use any name for the env, I just give an example below):

conda create -n diffpy.cmi313 -c conda-forge diffpy.cmi

then you can use it by 

conda activate difffpy.cmi313

and running your cmi scripts.  Please let us know if you have any issues.  There will be a bigger announcement shortly when the instructions are all updated (and when a bit more testing has been done)

thanks so much for your support.  Thanks also to the dedicated team of students in the Billinge group that brought this home this summer.  We will thank them by name in the full release announcement......

S