Fix len() for py

Author: mattn

py/vimlfunc.py

@@ -131,8 +131,11 @@ def viml_keys(obj):
     return obj.keys()
 
 def viml_len(obj):
-    if type(obj) is str:
-        return len(obj.encode('utf-8'))
+    try:
+        if type(obj) is str:
+            return len(obj.encode('utf-8', 'ignore'))
+    except UnicodeDecodeError:
+        pass
     return len(obj)
 
 def viml_printf(*args):

py/vimlparser.py

@@ -131,8 +131,11 @@ def viml_keys(obj):
     return obj.keys()
 
 def viml_len(obj):
-    if type(obj) is str:
-        return len(obj.encode('utf-8'))
+    try:
+        if type(obj) is str:
+            return len(obj.encode('utf-8', 'ignore'))
+    except UnicodeDecodeError:
+        pass
     return len(obj)
 
 def viml_printf(*args):