1#' Check if a string is alphabetic.
2#'
3#' Return \code{TRUE} if all characters in the string are alphabetic and there is at least one character,
4#' \code{FALSE} otherwise.
5#'
6#' @param str A character vector.
7#'
8#' @return A logical vector.
9#'
10#' @references \url{https://docs.python.org/3/library/stdtypes.html#str.isalpha}
11#'
12#' @seealso \code{\link{pystr_isalnum}}, \code{\link{pystr_isnumeric}}
13#'
14#' @examples
15#' pystr_isalpha("abc")
16#' pystr_isalpha("abc123")
17#' pystr_isalpha("abc!")
18#' pystr_isalpha(c("one", "2", "three!"))
19#'
20#' @export
21pystr_isalpha <- function(str) {
22  return(pystr_isalpha_(str))
23}
24