list: py-all, p-any: Use "when" and "unless".

* modules/language/python/list.scm (py-all): Use "unless".
(py-any): Use "when".

diff --git a/modules/language/python/list.scm b/modules/language/python/list.scm
index 35be4fc..2ac75c3 100644 (file)
--- a/modules/language/python/list.scm
+++ b/modules/language/python/list.scm
@@ -988,15 +988,13 @@
 
 (define (py-all x)
   (for ((i : x)) ()
-       (if (not i)
-           (break #f))
+       (unless i (break #f))
        #:final
        #t))
 
 (define (py-any . x)
   (for ((i : x)) ()
-       (if i
-           (break #t))
+       (when i (break #t))
        #:final
        #f))