Fix to workaround issue sending callables over xmlrpc

fs/base.py

@@ -821,6 +821,17 @@ class FS(object):
 
         """                  
         
+        def listdir(path, *args, **kwargs):
+            if ignore_errors:
+                try:
+                    return self.listdir(path, *args, **kwargs)
+                except:
+                    return []
+            else:
+                return self.listdir(path, *args, **kwargs)
+        
+        if search == "breadth":
+            
             if wildcard is None:
                 wildcard = lambda f:True
             elif not callable(wildcard):
@@ -833,17 +844,6 @@ class FS(object):
                 dir_wildcard_re = re.compile(fnmatch.translate(dir_wildcard))
                 dir_wildcard = lambda fn:bool (dir_wildcard_re.match(fn))              
             
-        def listdir(path, *args, **kwargs):
-            if ignore_errors:
-                try:
-                    return self.listdir(path, *args, **kwargs)
-                except:
-                    return []
-            else:
-                return self.listdir(path, *args, **kwargs)
-        
-        if search == "breadth":
-            
             dirs = [path]
             while dirs:
                 current_path = dirs.pop()
@@ -873,7 +873,7 @@ class FS(object):
                 except ResourceNotFoundError:
                     # Could happen if another thread / process deletes something whilst we are walking
                     pass
-                yield (recurse_path, self.listdir(recurse_path, wildcard=wildcard, files_only=True))
+                yield (recurse_path, listdir(recurse_path, wildcard=wildcard, files_only=True))
 
             for p in recurse(path):
                 yield p
@@ -1230,3 +1230,5 @@ def flags_to_mode(flags):
     if flags & os.O_EXCL:
         mode += "x"
     return mode
+
+    
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