diff --git a/lib/_range.py b/lib/_range.py
index ee9c329e..5db10a3c 100644
--- a/lib/_range.py
+++ b/lib/_range.py
@@ -491,6 +491,7 @@ class NumberRangeAdapter(RangeAdapter):
         return ("'%s%s,%s%s'" % (
             r._bounds[0], lower, upper, r._bounds[1])).encode('ascii')
 
+
 # TODO: probably won't work with infs, nans and other tricky cases.
 register_adapter(NumericRange, NumberRangeAdapter)
 
diff --git a/lib/extras.py b/lib/extras.py
index c33cffc2..a2f56389 100644
--- a/lib/extras.py
+++ b/lib/extras.py
@@ -30,10 +30,7 @@ import sys as _sys
 import time as _time
 import re as _re
 
-try:
-    import logging as _logging
-except:
-    _logging = None
+import logging as _logging
 
 import psycopg2
 from psycopg2 import extensions as _ext
@@ -189,7 +186,7 @@ class DictRow(list):
     def get(self, x, default=None):
         try:
             return self[x]
-        except:
+        except Exception:
             return default
 
     def iteritems(self):
diff --git a/lib/pool.py b/lib/pool.py
index a91c9cc0..5cca1603 100644
--- a/lib/pool.py
+++ b/lib/pool.py
@@ -138,7 +138,7 @@ class AbstractConnectionPool(object):
         for conn in self._pool + list(self._used.values()):
             try:
                 conn.close()
-            except:
+            except Exception:
                 pass
         self.closed = True
 
diff --git a/lib/tz.py b/lib/tz.py
index 92a16041..bf046310 100644
--- a/lib/tz.py
+++ b/lib/tz.py
@@ -132,6 +132,7 @@ class LocalTimezone(datetime.tzinfo):
         tt = time.localtime(stamp)
         return tt.tm_isdst > 0
 
+
 LOCAL = LocalTimezone()
 
 # TODO: pre-generate some interesting time zones?