I don't plan to merge this now, but let's see how many things are broken

We depend on updating mamba to v2:
#2147

#15 9.104 error    libmamba Could not solve for environment specs
#15 9.104     The following packages are incompatible
#15 9.104     ├─ mamba <2.0.0 is installable with the potential options

If you are interested in making Python 3.13 work for these images, please help conda-forge to build missing packages, here is the current progress: https://conda-forge.org/status/migration/?name=python313

Python 3.13.1 has been released, so we're waiting for the packages to be compatible with 3.13.
When tests pass, I will merge this, but I have no idea if it will be soon.

The upstream PR to build conda for python3.13 in conda-forge has been merged 🎉
conda-forge/conda-feedstock#258

Let's see if everything else builds now (or if something fails)

Ok, there are 3 upstream issues:

1. TensorFlow doesn't support Python 3.13: It doesn't support on python3.13 tensorflow/tensorflow#78774
   It seems that no one answers when the support will be added, unfortunately.
2. rpy2: Waiting for Rebuild for python 3.13 conda-forge/rpy2-feedstock#127, but more for rpy2 v3.5.17 conda-forge/rpy2-feedstock#128
3. We install pinned version of pandas for spark-related images.
   v4.0.0-rc1 tag and GitHub release has been created, but no binaries are available on https://dlcdn.apache.org/spark/. This version already uses last pandas 2.2.3, which already works with python 3.13 in conda-forge.
   So, we're waiting for new binaries to become available.

spark is almost released, shouldn't be long: #2300

2. rpy2: Waiting for Rebuild for python 3.13 conda-forge/rpy2-feedstock#127, but more for rpy2 v3.5.17 conda-forge/rpy2-feedstock#128

Rebuild for python 3.13 merged. See: conda-forge/rpy2-feedstock#132

2. rpy2: Waiting for Rebuild for python 3.13 conda-forge/rpy2-feedstock#127, but more for rpy2 v3.5.17 conda-forge/rpy2-feedstock#128

Rebuild for python 3.13 merged. See: conda-forge/rpy2-feedstock#132

Thanks @flaviomartins! Awesome work 🔥
I actually wanted to try it out on the weekend, but let me restart it now.

Thanks @flaviomartins! Awesome work 🔥 I actually wanted to try it out on the weekend, but let me restart it now.

The datascience image failed due to rpy2 requirements resolution. I uploaded a new build which seems to fix this conda-forge/rpy2-feedstock#137.

Tensorflow is not yet capable with Python 3.13, but pip ens up downloading another version:
Downloading tensorflow_cpu-2.20.0rc0-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (4.5 kB)

https://github.com/tensorflow/tensorflow/releases/tag/v2.20.0-rc0

I hope it will be soon released and we will easily merge this

Tensorflow is not yet capable with Python 3.13, but pip ens up downloading another version: Downloading tensorflow_cpu-2.20.0rc0-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (4.5 kB)

https://github.com/tensorflow/tensorflow/releases/tag/v2.20.0-rc0

I hope it will be soon released and we will easily merge this

I was also surprised by the tensorflow images build success. While we are talking about this yesterday they released an RC with wheels for Python 3.13 👍

Ok, there are 3 upstream issues:

1. TensorFlow doesn't support Python 3.13: It doesn't support on python3.13 tensorflow/tensorflow#78774
   It seems that no one answers when the support will be added, unfortunately.
2. rpy2: Waiting for Rebuild for python 3.13 conda-forge/rpy2-feedstock#127, but more for rpy2 v3.5.17 conda-forge/rpy2-feedstock#128
3. We install pinned version of pandas for spark-related images.
   v4.0.0-rc1 tag and GitHub release has been created, but no binaries are available on https://dlcdn.apache.org/spark/. This version already uses last pandas 2.2.3, which already works with python 3.13 in conda-forge.
   So, we're waiting for new binaries to become available.

Hello, I noticed that rpy2 ticket 127 and ticket 128 are both now closed. Are we just waiting for TensorFlow now?

Ok, there are 3 upstream issues:

1. TensorFlow doesn't support Python 3.13: It doesn't support on python3.13 tensorflow/tensorflow#78774
   It seems that no one answers when the support will be added, unfortunately.
2. rpy2: Waiting for Rebuild for python 3.13 conda-forge/rpy2-feedstock#127, but more for rpy2 v3.5.17 conda-forge/rpy2-feedstock#128
3. We install pinned version of pandas for spark-related images.
   v4.0.0-rc1 tag and GitHub release has been created, but no binaries are available on https://dlcdn.apache.org/spark/. This version already uses last pandas 2.2.3, which already works with python 3.13 in conda-forge.
   So, we're waiting for new binaries to become available.

Hello, I noticed that rpy2 ticket 127 and ticket 128 are both now closed. Are we just waiting for TensorFlow now?

Yes, please see the comments above

Thanks for the quick reply. As a side note, how often do these Python upgrades happen (one month after each new version, only with major versions, every 2 months, etc)?

Thanks for the quick reply. As a side note, how often do these Python upgrades happen (one month after each new version, only with major versions, every 2 months, etc)?

We update major python version (like this PR does from 3.12 to 3.13) per our policy: https://jupyter-docker-stacks.readthedocs.io/en/latest/maintaining/tasks.html#updating-python-version

Images are rebuilt weekly automatically, so when a new patch release is available on conda-forge, our images will start using it automatically

TF 2.20 has been released see: https://github.com/tensorflow/tensorflow/releases/tag/v2.20.0

TF 2.20 has been released see: tensorflow/tensorflow@v2.20.0 (release)

Awesome, thanks for letting me know, I updated the changelog date and the list of old images.
When CI is green I will check release tensorflow is getting installed and will merge this.