diff --git a/Ghidra/Features/PyGhidra/src/main/py/README.md b/Ghidra/Features/PyGhidra/src/main/py/README.md
index d292da545a..0e4c5c9b2e 100644
--- a/Ghidra/Features/PyGhidra/src/main/py/README.md
+++ b/Ghidra/Features/PyGhidra/src/main/py/README.md
@@ -567,6 +567,9 @@ import pdb   # imports Python's pdb
 import pdb_  # imports Ghidra's pdb
 ```
 ## Change History
+__3.3.0__
+* Eliminated `KeyError` exceptions that were generated while stepping with a debugger.
+
 __3.2.0__
 * PyGhidra's `help()` override can now show `public/private/protected` on Ghidra Java fields and 
   methods (available in Ghidra 12.2 and later).
diff --git a/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/__init__.py b/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/__init__.py
index 0121f52864..54b46c16e9 100644
--- a/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/__init__.py
+++ b/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/__init__.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ##
-__version__ = "3.2.0"
+__version__ = "3.3.0"
 
 # stub for documentation and typing
 # this is mostly to hide the function parameter
diff --git a/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/script.py b/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/script.py
index 0f17bafef5..a4c131459f 100644
--- a/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/script.py
+++ b/Ghidra/Features/PyGhidra/src/main/py/src/pyghidra/script.py
@@ -51,7 +51,8 @@ class _StaticMap(dict):
                 # this is necessary for completions on currentAddress, currentProgram, etc.
                 try:
                     return getattr(self.script, key)
-                except AttributeError:
+                except Exception:
+                    # getters like getFirstFunction() throw when there is no program
                     return res
             return res
         raise KeyError(key)
@@ -61,7 +62,9 @@ class _StaticMap(dict):
         return res if res is not _NO_ATTRIBUTE else default
 
     def __iter__(self):
-        yield from self.script
+        # Completions include the bean properties that regular iteration leaves out.
+        yield from dict.__iter__(self.script)
+        yield from dir(self.script._script)
 
     def keys(self):
         return KeysView(self)
@@ -194,7 +197,15 @@ class PyGhidraScript(dict):
 
     def __iter__(self):
         yield from super().__iter__()
-        yield from dir(self._script)
+        for name in dir(self._script):
+            attr = inspect.getattr_static(self._script, name, _NO_ATTRIBUTE)
+            # JPype bean properties may have no getter, or a getter that throws when
+            # there is no program (firstFunction, memoryBlocks, ...). Keep them out of
+            # iteration so debuggers inspecting globals don't evaluate them; they can
+            # still be read by name. Exposed fields use _JavaProperty and are kept.
+            if type(attr) is property:
+                continue
+            yield name
 
     def get_static(self, key):
         res = self.get(key, _NO_ATTRIBUTE)
diff --git a/Ghidra/Features/PyGhidra/src/main/py/tests/test_core.py b/Ghidra/Features/PyGhidra/src/main/py/tests/test_core.py
index 6feb9aa440..9f2ae147eb 100644
--- a/Ghidra/Features/PyGhidra/src/main/py/tests/test_core.py
+++ b/Ghidra/Features/PyGhidra/src/main/py/tests/test_core.py
@@ -171,6 +171,71 @@ def test_import_script(capsys, shared_datadir: Path):
     assert captured.out.rstrip() == "imported successfully"
 
 
+def test_script_globals_iteration():
+    pyghidra.start()
+    from pyghidra.core import _setup_script
+
+    # no program is open, which is when getters like getFirstFunction() throw
+    script = _setup_script(None, None)
+    script["user_variable"] = 42
+    names = list(script)
+
+    # a debugger reads every name it iterates
+    for name in names:
+        script[name]
+
+    for name in ("potentialPropertiesFileLocations", "propertiesFile", "referencePrimary"):
+        assert name not in names
+        with pytest.raises(KeyError):
+            script[name]
+
+    for name in ("firstFunction", "memoryBlocks", "scriptName"):
+        assert name not in names
+    assert script["scriptName"] is not None
+
+    for name in ("user_variable", "currentProgram", "currentAddress", "monitor", "getCurrentProgram"):
+        assert name in names
+    assert script["user_variable"] == 42
+    assert script["currentProgram"] is None
+    assert script["currentAddress"] is None
+    assert script["monitor"] is not None
+    assert callable(script["getCurrentProgram"])
+
+
+def test_script_static_view_includes_bean_properties():
+    pyghidra.start()
+    from pyghidra.script import PyGhidraScript
+
+    view = PyGhidraScript().get_static_view()
+    names = list(view)
+    for name in ("potentialPropertiesFileLocations", "propertiesFile", "referencePrimary"):
+        assert name in names
+        assert isinstance(view[name], property)
+    for name in ("firstFunction", "scriptName"):
+        assert name in names
+
+
+def test_script_completion_without_program():
+    pyghidra.start()
+    from rlcompleter import Completer
+    from pyghidra.core import _setup_script
+
+    # rlcompleter reads every value in the namespace, including firstFunction
+    view = _setup_script(None, None).get_static_view()
+    assert Completer(view).complete("currentPr", 0) == "currentProgram"
+
+
+def test_script_write_only_property_assignment():
+    pyghidra.start()
+    from java.util import ArrayList
+    from pyghidra.script import PyGhidraScript
+
+    script = PyGhidraScript()
+    locations = ArrayList()
+    script["potentialPropertiesFileLocations"] = locations
+    assert script["potentialPropertiesFileLocs"] == locations
+
+
 def test_import_ghidra_base_java_packages():
 
     def get_runtime_top_level_java_packages(launcher) -> set: