Replace Requires.jl with Pkg extensions for `collect_results`?

[Datseris]

At the moment the collect_results functionality is done using Requires.jl to conditionally load code on using DataFrames.jl.

Julia 1.10 and later versions have the Package extensions system which is more robust and natively supported. Doing the switch from Requires.jl to Pkg is honestly trivially easy, here is an example of doing it for e.g., TimeseriesSurrogates.jl for a plotting conditional dependency:

https://github.com/JuliaDynamics/TimeseriesSurrogates.jl/blob/main/src/plotting/surrogate_plot.jl and https://github.com/JuliaDynamics/TimeseriesSurrogates.jl/blob/main/ext/TimeseriesSurrogatesVisualizations.jl and https://github.com/JuliaDynamics/TimeseriesSurrogates.jl/blob/main/Project.toml#L27

Should we do the switch? It would require later versions of DrWatson to raise the Julia dependency from 1.0 to 1.10. I don't know what the impact of this is for the average DrWatson user, as I've always used latest stable version... How many honestly use 1.0 only, and more importantly, why?

[ReubenJ]

Just ran into the same question and came across this solution for supporting both Requires and Pkg extensions: SciML/DiffEqBase.jl@c2de920#diff-de4c4ba0a280ecb9ba500e64be262686e3f8efdd99b60152eec26cc1263afbb1

in case you'd like to use extensions without upping the lower bound on the Julia version.

[ReubenJ]

I see the plan is to only support >1.9 as of #425, so maybe this isn't useful in the end