Progress bar should print to stderr

[Quarlos]

I see that the progress bar can be turned off by setting progress=False. However, sometimes it is useful to look at the progress, while at the same time piping the results to another process. It looks like SymbolicRegression.jl is using an older version of ProgressBars.jl.

It has been pointed out that default behaviour of ProgressBars.jl should be to print to stderr - cloud-oak/ProgressBars.jl/pull/47 -, and ProgressBars.jl has been updated to behave that way cloud-oak/ProgressBars.jl. Is there an easy way of making SymbolicRegression.jl compatible with updated ProgressBars.jl?

[MilesCranmer]

Good idea. The file src/ProgressBars.jl should be pretty much the same as the main repository except for a few tweaks. The patch from that PR should be hopefully straightforward to implement - want to add it in a pull request?

[Quarlos]

Sure, will give it a try. Still not really familiar with julia package workflow and language so this might take awhile.

[MilesCranmer]

@Quarlos once #157 is merged, the upstream ProgressBars.jl will be used.

[Quarlos]

Nice, thanks, @MilesCranmer!