Some (many) tests actually pass now on Python 3. May no longer be backwards-compatible with Python < 2.6.

MySQLdb/MySQLdb/__init__.py

@@ -77,7 +77,7 @@ def Binary(x):
 
 def Connect(*args, **kwargs):
     """Factory function for connections.Connection."""
-    from connections import Connection
+    from MySQLdb.connections import Connection
     return Connection(*args, **kwargs)
 
 connect = Connection = Connect

MySQLdb/MySQLdb/connections.py

@@ -6,7 +6,7 @@ want to make your own subclasses. In most cases, you will probably
 override Connection.default_cursor with a non-standard Cursor class.
 
 """
-import cursors
+from MySQLdb import cursors
 from _mysql_exceptions import Warning, Error, InterfaceError, DataError, \
      DatabaseError, OperationalError, IntegrityError, InternalError, \
      NotSupportedError, ProgrammingError
@@ -33,7 +33,7 @@ def defaulterrorhandler(connection, cursor, errorclass, errorvalue):
         connection.messages.append(error)
     del cursor
     del connection
-    raise errorclass, errorvalue
+    raise errorclass(errorvalue)
 
 re_numeric_part = re.compile(r"^(\d+)")
 
@@ -143,8 +143,8 @@ class Connection(_mysql.connection):
         documentation for the MySQL C API for some hints on what they do.
 
         """
-        from constants import CLIENT, FIELD_TYPE
-        from converters import conversions
+        from MySQLdb.constants import CLIENT, FIELD_TYPE
+        from MySQLdb.converters import conversions
         from weakref import proxy, WeakValueDictionary
         
         import types

MySQLdb/MySQLdb/converters.py

@@ -33,8 +33,8 @@ MySQL.connect().
 """
 
 from _mysql import string_literal, escape_sequence, escape_dict, escape, NULL
-from constants import FIELD_TYPE, FLAG
-from times import *
+from MySQLdb.constants import FIELD_TYPE, FLAG
+from MySQLdb.times import *
 import types
 import array
 

MySQLdb/MySQLdb/cursors.py

@@ -7,8 +7,13 @@ default, MySQLdb uses the Cursor class.
 
 import re
 import sys
-from types import ListType, TupleType, UnicodeType
-
+try:
+    from types import ListType, TupleType, UnicodeType
+except ImportError:
+    # Python 3
+    ListType = list
+    TupleType = tuple
+    UnicodeType = str
 
 restr = (r"\svalues\s*"
         r"(\(((?<!\\)'[^\)]*?\)[^\)]*(?<!\\)?'"
@@ -161,7 +166,7 @@ class BaseCursor(object):
         try:
             r = None
             r = self._query(query)
-        except TypeError, m:
+        except TypeError as m:
             if m.args[0] in ("not enough arguments for format string",
                              "not all arguments converted"):
                 self.messages.append((ProgrammingError, m.args[0]))
@@ -212,7 +217,7 @@ class BaseCursor(object):
         qv = m.group(1)
         try:
             q = [ qv % db.literal(a) for a in args ]
-        except TypeError, msg:
+        except TypeError as msg:
             if msg.args[0] in ("not enough arguments for format string",
                                "not all arguments converted"):
                 self.errorhandler(self, ProgrammingError, msg.args[0])
@@ -365,7 +370,7 @@ class CursorStoreResultMixIn(object):
             r = value
         else:
             self.errorhandler(self, ProgrammingError,
-                              "unknown scroll mode %s" % `mode`)
+                              "unknown scroll mode %s" % repr(mode))
         if r < 0 or r >= len(self._rows):
             self.errorhandler(self, IndexError, "out of range")
         self.rownumber = r

MySQLdb/_mysql.c

@@ -2979,8 +2979,8 @@ init_mysql(void)
 	if (!module) return; /* this really should never happen */
 #endif
 #ifdef IS_PY3K
-/*    Py_TYPE(_mysql_ConnectionObject_Type) = &PyType_Type;
-    Py_TYPE(_mysql_ResultObject_Type) = &PyType_Type; */
+	Py_TYPE(&_mysql_ConnectionObject_Type) = &PyType_Type;
+	Py_TYPE(&_mysql_ResultObject_Type) = &PyType_Type;
 #else
 	_mysql_ConnectionObject_Type.ob_type = &PyType_Type;
 	_mysql_ResultObject_Type.ob_type = &PyType_Type;

MySQLdb/tests/dbapi20.py

@@ -706,7 +706,7 @@ class DatabaseAPI20Test(unittest.TestCase):
             that returns two result sets, first the 
 	    number of rows in booze then "name from booze"
         '''
-        raise NotImplementedError,'Helper not implemented'
+        raise NotImplementedError('Helper not implemented')
         #sql="""
         #    create procedure deleteme as
         #    begin
@@ -718,7 +718,7 @@ class DatabaseAPI20Test(unittest.TestCase):
 
     def help_nextset_tearDown(self,cur):
         'If cleaning up is needed after nextSetTest'
-        raise NotImplementedError,'Helper not implemented'
+        raise NotImplementedError('Helper not implemented')
         #cur.execute("drop procedure deleteme")
 
     def test_nextset(self):
@@ -751,7 +751,7 @@ class DatabaseAPI20Test(unittest.TestCase):
             con.close()
 
     def test_nextset(self):
-        raise NotImplementedError,'Drivers need to override this test'
+        raise NotImplementedError('Drivers need to override this test')
 
     def test_arraysize(self):
         # Not much here - rest of the tests for this are in test_fetchmany
@@ -786,7 +786,7 @@ class DatabaseAPI20Test(unittest.TestCase):
 
     def test_setoutputsize(self):
         # Real test for setoutputsize is driver dependant
-        raise NotImplementedError,'Driver need to override this test'
+        raise NotImplementedError('Driver need to override this test')
 
     def test_None(self):
         con = self._connect()

MySQLdb/tests/test_MySQLdb_capabilities.py

@@ -77,7 +77,7 @@ class test_MySQLdb(capabilities.DatabaseTest):
         from MySQLdb.constants import ER
         try:
             self.cursor.execute("describe some_non_existent_table");
-        except self.connection.ProgrammingError as msg:
+        except self.connection.ProgrammingError as (msg,):
             self.assertTrue(msg[0] == ER.NO_SUCH_TABLE)
 
     def test_bug_3514287(self):

MySQLdb/tests/test_MySQLdb_dbapi20.py

@@ -203,4 +203,3 @@ class test_MySQLdb(dbapi20.DatabaseAPI20Test):
     
 if __name__ == '__main__':
     unittest.main()
-    print '''"Huh-huh, he said 'unit'." -- Butthead'''