Patch 1/4: Minor exception handling improvements (don't swallow program exits)

https://sourceforge.net/p/mysql-python/patches/77/

MySQLdb/MySQLdb/cursors.py

@@ -174,6 +174,8 @@ class BaseCursor(object):
             else:
                 self.messages.append((TypeError, m))
                 self.errorhandler(self, TypeError, m)
+        except (SystemExit, KeyboardInterrupt):
+            raise
         except:
             exc, value, tb = sys.exc_info()
             del tb
@@ -223,6 +225,8 @@ class BaseCursor(object):
                 self.errorhandler(self, ProgrammingError, msg.args[0])
             else:
                 self.errorhandler(self, TypeError, msg)
+        except (SystemExit, KeyboardInterrupt):
+            raise
         except:
             exc, value, tb = sys.exc_info()
             del tb

MySQLdb/MySQLdb/times.py

@@ -52,6 +52,8 @@ def DateTime_or_None(s):
     try:
         d, t = s.split(sep, 1)
         return datetime(*[ int(x) for x in d.split('-')+t.split(':') ])
+    except (SystemExit, KeyboardInterrupt):
+        raise
     except:
         return Date_or_None(s)
 
@@ -79,8 +81,12 @@ def Time_or_None(s):
         return None
 
 def Date_or_None(s):
-    try: return date(*[ int(x) for x in s.split('-',2)])
-    except: return None
+    try:
+        return date(*[ int(x) for x in s.split('-',2)])
+    except (SystemExit, KeyboardInterrupt):
+        raise
+    except:
+        return None
 
 def DateTime2literal(d, c):
     """Format a DateTime object as an ISO timestamp."""
@@ -97,5 +103,9 @@ def mysql_timestamp_converter(s):
     s = s + "0"*(14-len(s)) # padding
     parts = map(int, filter(None, (s[:4],s[4:6],s[6:8],
                                    s[8:10],s[10:12],s[12:14])))
-    try: return Timestamp(*parts)
-    except: return None
+    try:
+        return Timestamp(*parts)
+    except (SystemExit, KeyboardInterrupt):
+        raise
+    except:
+        return None