Converting empty numpy char array fails

[dipterix]

Failed to convert array([], dtype='<U1') to R.

reprex:

np <- reticulate::import("numpy", convert = FALSE)
arr <- np$array(list("a"), dtype = "U1")
print(arr)
#> array(['a'], dtype='<U1')
reticulate::py_to_r(arr)
#> [1] "a"

arr <- np$array(list(), dtype = "U1")
print(arr)
#> array([], dtype='<U1')
# expected character(0L)
reticulate::py_to_r(arr)
#> Iteration of zero-sized operands is not enabled

Session/Versions:

R version 4.4.1 (2024-06-14)
Platform: aarch64-apple-darwin20
Running under: macOS Sonoma 14.5
Python version:        3.11.9 | packaged by conda-forge | (main, Apr 19 2024, 18:34:54) [Clang 16.0.6 ]
numpy version:  1.26.4

[t-kalinowski]

This is fixed in the development version now. Thank you for reporting!