nealrichardson commented on issue #43748:
URL: https://github.com/apache/arrow/issues/43748#issuecomment-2322925560
Thanks for the report. This is bizarre behavior of `packageVersion`: it
seems to be an infinitely recursive object.
```
> x <- packageVersion("arrow")
> typeof(x)
[1] "list"
> lapply(x, typeof)
[[1]]
[1] "list"
> lapply(x[[1]], typeof)
[[1]]
[1] "list"
> lapply(x[[1]][[1]], typeof)
[[1]]
[1] "list"
> x[[1]]
[1] ‘17.0.0.1’
> x[[1]][[1]]
[1] ‘17.0.0.1’
> x[[1]][[1]][[1]]
[1] ‘17.0.0.1’
> x[[1]][[1]][[1]][[1]]
[1] ‘17.0.0.1’
```
It's right there in the function definition: it basically does
`list(unclass(x)[[1]])`, so it always returns a list
```
> `[[.numeric_version`
function (x, ..., exact = NA)
{
if (...length() < 2L)
structure(list(unclass(x)[[..., exact = exact]]), class =
oldClass(x))
else unclass(x)[[..1, exact = exact]][..2]
}
<bytecode: 0x1109cf1c8>
<environment: namespace:base>
```
I'll work around this, but this feels very wrong.
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