This is my first foray into the world of Raspberry Pi, so there's likely some very obvious things I'm missing.

I built this patch on a Linux computer running vanilla PD 0.52.0, but when I put it on my (very old and tiny) Raspberry Pi running (oh maybe this is the issue) 0.51.4, I get the error

list store: no method for 'delete'.

I updated everything when I started using this Pi, so I'm pretty sure that's the most up-to-date I can get with Raspbian.

Anyone know about this? I'm also new to all things [list], so maybe there's a simple workaround I don't know about if [delete $1 1( ---> [list store] doesn't work on 32bit and/or 0.51.4.

(by the way, it also seemed like I had to include the number of items to delete - that is, when I simply sent [delete 5( into [list store], to delete the sixth item, I got errors. Specifying "just delete one item" by [delete 5 1( worked. But that's another story; one question per thread!)

Oh, I see... I was using [list-store] messages that are new to PD 0.52. I just tried on PD 0.51.3, and I get the same error. So it's not the Pi.

Guess I need to find another way to easily remove one element from a list!

You can instead compile the latest Pd on the Pi. It's a pretty easy process. All you need to know is in the INSTALL.txt file that comes along with Pd.

You might be able to install a later version without compiling, if you can find a repository that has the latest version and add it to the list of repositories that Raspbian OS searches. The process is a little complicated though, I don't remember the commands to do that. Maybe somebody with more knowledge of Linux could advise.

@Load074 [list-delete] from the list-abs library might help until you get [list store] fixed.
It is a useful library of abstractions...... not externals..... and you can learn a lot about list manipulation just by playing with the abstractions.
David.

Thanks @alexandros and @dfkettle I might try something like that. I have a suspicion that there will be some core libraries I'd need which might be beyond my Linux skills to update without a total dependency mess, but I'll see...

@whale-av, yes that is a great library! I hadn't explored it before, thanks for the tip. Unfortunately, the way my patch was built, [list-delete] is very far from a drop-in solution, and descending into the fifth circle of Raspberry Pi Dependency Hell may still be the pleasanter option.

@Load074 said:

I have a suspicion that there will be some core libraries I'd need which might be beyond my Linux skills to update without a total dependency mess, but I'll see...

Debian sid has a binary of 0.52 and most of the externals are available in the package repository : https://packages.debian.org/sid/multimedia-puredata

@alexandros yes that was very easy indeed. Downloading the source files from https://puredata.info/downloads/pure-data installed with none of the predicted dependency problems on my old-as-the-hills (but up-to-date) Raspberry Pi. In fact, if I'd bothered to read all of the INSTALL.txt before I started, it would have been a success-on-the-first-try endeavor!

So now I have 0.52-1 and a [delete(-able [list-store].