# TODO: throw error in py_initialize() if attempting to bind to Python 2, then delete this test helper

# prefer Python 3 if available
# if (!is_windows() &&
#     !py_available(initialize = FALSE) &&
#     is.na(Sys.getenv("RETICULATE_PYTHON", unset = NA)))
# {
#   python <- Sys.which("python3")
#   if (nzchar(python) && python != "/usr/bin/python3")
#     use_python(python, required = TRUE)
# }