1 files changed, 68 insertions, 9 deletions
diff --git a/modules/language/python/module/python.scm b/modules/language/python/module/python.scm
index 96b0aa7..3398dbb 100644
--- a/modules/language/python/module/python.scm
+++ b/modules/language/python/module/python.scm
@@ -126,15 +126,74 @@
 	   #t
 	   (is-a? (ref sub '__goops__) (ref cls '__goops__)))))
 
-(define-method (isinstance x y) #f)
+(define-method (isinstance x y)
+  (if (null? y)
+      #f
+      (if (pair? y)
+	  (or (isinstance x (car y))
+	      (isinstance x (cdr y)))
+	  (is-a? x y))))
+
+(define-method (isinstance (i <integer>) y)
+  (if (issubclass y int)
+      #t
+      (if (pair? y)
+	  (or (isinstance i (car y))
+	      (isinstance i (cdr y)))
+	  (is-a? i y))))
+
+(define-method (isinstance (i <real>) y)
+  (if (issubclass y float)
+      #t
+      (if (pair? y)
+	  (or (isinstance i (car y))
+	      (isinstance i (cdr y)))
+	  (is-a? i y))))
+
+(define-method (isinstance (i <pair>) y)
+  (if (issubclass y tuple)
+      #t
+      (if (pair? y)
+	  (or (isinstance i (car y))
+	      (isinstance i (cdr y)))
+	  (is-a? i y))))
+
+(define-method (isinstance (i <string>) y)
+  (if (issubclass y str)
+      #t
+      (if (pair? y)
+	  (or (isinstance i (car y))
+	      (isinstance i (cdr y)))
+	  (is-a? i y))))
+
+(define-method (isinstance (i <bytevector>) y)
+  (if (issubclass y bytes)
+      #t
+      (if (pair? y)
+	  (or (isinstance i (car y))
+	      (isinstance i (cdr y)))
+	  (is-a? i y))))
+
+
+(define-method (isinstance o (cl <p>))
+  (cond
+   ((eq? cl py-list)
+    (is-a? o <py-list>))
+   (else #f)))
+  
 (define-method (isinstance (o <p>) (cl <p>))
-  (aif it (ref cl '__instancecheck__)
-       (it o)
-       (if (pair? cl)
-           (or
-            (isinstance o (car cl))
-            (isinstance o (cdr cl)))
-           (is-a? o (ref cl '__goops__)))))
+  (cond
+   ((ref cl '__instancecheck__) =>
+    (lambda (it)
+      (it o)))
+   ((pair? cl)
+    (or
+     (isinstance o (car cl))
+     (isinstance o (cdr cl))))
+   (else
+    (is-a? o (ref cl '__goops__)))))
+	       
+	       
 
 (define iter
   (case-lambda
@@ -177,7 +236,7 @@
 (define (id x) (object-address x))
 
 (define (input str)
-  (format #t str)
+  ((@ (guile) format) #t str)
   (readline))
 
 (define (idx x) x)