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