deal with objects that use AttributeError to "remove" fields

Dyalog · Aug 24, 2017 · dc09a38 · dc09a38
1 parent 620d6de
commit dc09a38
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Showing 2 changed files with 16 additions and 5 deletions.
diff --git a/pynapl/ObjectWrapper.py b/pynapl/ObjectWrapper.py
@@ -81,8 +81,8 @@ def items(self):
 
         for attr in dir(obj):
 
-            item = getattr(obj, attr)
             try:
+                item = getattr(obj, attr)
                 if hasattr(item,'__call__'):
                     fn.append(attr)
                 else:
@@ -95,6 +95,11 @@ def items(self):
                 # ImportError and ignore it. If something could not be imported,
                 # it is simply not included in the list of attributes. 
                 pass
+            except AttributeError:
+                # Some objects claim to have attributes (via `dir`), but then raise
+                # AttributeError when you actually try to access them. These are
+                # also ignored.
+                pass
 
         return classname, va, fn
 

diff --git a/pynapl/Py.dyalog b/pynapl/Py.dyalog
@@ -1122,15 +1122,21 @@
         ⍝ Import a Python module and return it as an APL object
         ∇ {obj}←Import module
             :Access Public
-            Exec'import ',module
-            obj←Eval module
+            :Trap 0 1000
+                Exec'import ',module
+                obj←Eval module
+            :Else ⋄ ⎕SIGNAL⊂('EN'(⎕DMX.EN))('Message'(⎕DMX.Message))
+            :EndTrap
         ∇
 
         ⍝ Import from
         ∇ {obj}←ImportFrom (module child)
             :Access Public
-            Exec'from ',module,' import ',child
-            obj←Eval child
+            :Trap 0 1000
+                Exec'from ',module,' import ',child
+                obj←Eval child
+            :Else ⋄ ⎕SIGNAL⊂('EN'(⎕DMX.EN))('Message'(⎕DMX.Message))
+            :EndTrap
         ∇
 
         ⍝ expose a Python function as a monadic APL "function" (using a namespace)