Fixed catching too broad exceptions

Also some flake8 cleanup in the lib dir.

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)
 

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 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):

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
 

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?