Fix issue with keyword fns erroring out on vectors (#771)

Hi,

could you please review patch to fix an issue with keyword fns throwing
a type error on vectors. Fixes #770.

thanks

Co-authored-by: ikappaki <[email protected]>

Author: ikappaki

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  * Fix issue with `(count nil)` throwing an exception (#759)
  * Fix issue with keyword fn not testing for test membership in sets (#762)
  * Fix an issue for executing Basilisp scripts via a shebang where certain platforms may not support more than one argument in the shebang line (#764)
+ * Fix issue with keyword fns throwing type error on vectors (#770)
 
 ## [v0.1.0b0]
 ### Added

src/basilisp/lang/keyword.py

@@ -63,7 +63,7 @@ def __call__(self, m: Union[IAssociative, IPersistentSet], default=None):
             return self if self in m else default
         try:
             return m.val_at(self, default)
-        except AttributeError:
+        except (AttributeError, TypeError):
             return None
 
     def __reduce__(self):

tests/basilisp/keyword_test.py

@@ -4,6 +4,7 @@
 
 from basilisp.lang import map as lmap
 from basilisp.lang import set as lset
+from basilisp.lang import vector as lvector
 from basilisp.lang.keyword import Keyword, complete, keyword
 
 
@@ -51,6 +52,8 @@ def test_keyword_as_function():
     assert None is kw(lset.s(1))
     assert "hi" is kw(lset.s(1), default="hi")
 
+    assert None is kw(lvector.v(1))
+
 
 @pytest.mark.parametrize(
     "o",