diff --git a/progressbar/__about__.py b/progressbar/__about__.py
index 279c7068..3fc1edeb 100644
--- a/progressbar/__about__.py
+++ b/progressbar/__about__.py
@@ -19,7 +19,7 @@
 long running operations.
 '''.strip().split())
 __email__ = 'wolph@wol.ph'
-__version__ = '3.34.3'
+__version__ = '3.34.4'
 __license__ = 'BSD'
 __copyright__ = 'Copyright 2015 Rick van Hattem (Wolph)'
 __url__ = 'https://github.com/WoLpH/python-progressbar'
diff --git a/progressbar/widgets.py b/progressbar/widgets.py
index 4b837568..f1b3a4ee 100644
--- a/progressbar/widgets.py
+++ b/progressbar/widgets.py
@@ -198,7 +198,7 @@ def __call__(self, progress, data, **kwargs):
                     data[name] = data[key]
                 else:
                     data[name] = transform(data[key])
-            except:  # pragma: no cover
+            except (KeyError, ValueError, IndexError):  # pragma: no cover
                 pass
 
         return FormatWidgetMixin.__call__(self, progress, data, **kwargs)
diff --git a/tests/test_stream.py b/tests/test_stream.py
index 3939e09f..0c540b47 100644
--- a/tests/test_stream.py
+++ b/tests/test_stream.py
@@ -59,7 +59,7 @@ def test_excepthook():
 
     try:
         raise RuntimeError()
-    except:
+    except RuntimeError:
         progressbar.streams.excepthook(*sys.exc_info())
 
     progressbar.streams.unwrap_excepthook()