I searched for "ipython-5.0.0" in the source and found this:
if [ -z "$IPYTHONDIR" ]; then
# We hardcode a version number in the directory name. The idea is
# that we keep using the same version number as long as that is
# possible. Only when some future IPython version really requires
# a new structure for the $IPYTHONDIR should this version number be
# changed to the new IPython version.
export IPYTHONDIR="$DOT_SAGE/ipython-5.0.0"
fi
So it should be viewed as "IPython, version 5.0.0 or later, as long as
things remain compatible". Maybe it would be better to have a directory
"ipython-config" (for example) with subdirectories that somehow convey the
version information. We could also, or in addition, create a README file
the existing directory with some sort of explanation.
--
John
On Monday, April 1, 2024 at 2:38:09 PM UTC-7 Marc Culler wrote:
> The problem that it *causes* is that people think that Sage has somehow
> managed to install an ancient ipython-5.0.0 in their ~/.sage directory.
> The user that reported this was indeed having problems because of an out of
> date ipython thet they had installed with %pip. The python package was
> installed as a --user package in ~/.sage. That is where the macOS app
> installs all pip packages, being disallowed from putting them into the app
> bundle itself because that would break the signature and macOS would then
> refuse to run the app..
>
> The old version of ipython caused the new app to crash with the rather
> amazing error message "object of type List is not iterable". When the user
> removed their ~/.sage directory everything worked as expected. But then,
> after starting Sage, they checked to see what was actually in the
> directory, and were alarmed to ",find" that Sage had re-installed
> ipython-5.0.0.
>
> As I said, this idea confuses users, and understandably so. It was not a
> great idea. There were so many other, better, ways of naming the directory.
>
> Maybe for the next Sage release I will move the pip packages to
> ~/Library/SageMath-X.Y. That won't stop Sage from creating
> ~/.sage/ipython-5.0.0 but it will remove the motivation for users to look
> in the .sage directory and get confused.
>
> - Marc
>
> On Monday, April 1, 2024 at 3:31:06 PM UTC-5 Nils Bruin wrote:
>
>> One scenario where I could see this being beneficial:
>> These configurations are written into `$HOME/.sage` (normally), so that
>> is not a location that is predicated by a venv or a localized subdir. If a
>> user is using two different sagemath installs (e.g., one system, the other
>> for development) that have incompatible ipython configs, they need to live
>> in places that allow peaceful co-existence. This would do it. I agree the
>> version number can look confusing, It seems like a historic artifact that
>> we didn't need to change our ipython configs since version 5.0.0, probably.
>> It looks to me like a fairly arbitrary choice how to mark that directory
>> name. Not changing it would be the easiest solution, but if someone wants
>> to make an argument that another naming convention has benefits (following
>> common practices that have since evolved?) it could be changed, at the
>> expense of everyone with an install needing to change locations of files
>> they already customized. So based on that, I think the best time to change
>> it (if at all) would be when an incompatible change in config is happening
>> anyway.
>>
>>
>> On Monday 1 April 2024 at 12:20:16 UTC-7 Dima Pasechnik wrote:
>>
>>
>> I must say I don't know what kind of problems these versioned names are
>> meant to solve.
>>
>>
>>
>> >On 31 March 2024 15:23:24 CEST, Marc Culler <marc....@gmail.com
>> <https://groups.google.com/>> wrote :
>>
>> >if [ -z "$IPYTHONDIR" ]; then
>> > # We hardcode a version number in the directory name. The idea is
>> > # that we keep using the same version number as long as that is
>> > # possible. Only when some future IPython version really requires
>> > # a new structure for the $IPYTHONDIR should this version number be
>> > # changed to the new IPython version.
>> > export IPYTHONDIR="$DOT_SAGE/ipython-5.0.0"
>> >fi
>>
>>
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