remove unused lines.

1 files changed, 20 insertions, 21 deletions

diff --git a/MySQLdb/connections.py b/MySQLdb/connections.py
index 27de110..6bc1613 100644
--- a/MySQLdb/connections.py
+++ b/MySQLdb/connections.py
@@ -39,14 +39,14 @@ re_numeric_part = re.compile(r"^(\d+)")
 
 def numeric_part(s):
     """Returns the leading numeric part of a string.
-    
+
     >>> numeric_part("20-alpha")
     20
     >>> numeric_part("foo")
     >>> numeric_part("16b")
     16
     """
-    
+
     m = re_numeric_part.match(s)
     if m:
         return int(m.group(1))
@@ -58,7 +58,7 @@ class Connection(_mysql.connection):
     """MySQL Database Connection Object"""
 
     default_cursor = cursors.Cursor
-    
+
     def __init__(self, *args, **kwargs):
         """
 
@@ -68,7 +68,7 @@ class Connection(_mysql.connection):
 
         host
           string, host to connect
-          
+
         user
           string, user to connect as
 
@@ -125,7 +125,7 @@ class Connection(_mysql.connection):
           If supplied, the session SQL mode will be changed to this
           setting (MySQL-4.1 and newer). For more details and legal
           values, see the MySQL documentation.
-          
+
         client_flag
           integer, flags to use or 0
           (see MySQL docs or constants/CLIENTS.py)
@@ -138,19 +138,17 @@ class Connection(_mysql.connection):
 
         local_infile
           integer, non-zero enables LOAD LOCAL INFILE; zero disables
-    
+
         There are a number of undocumented, non-standard methods. See the
         documentation for the MySQL C API for some hints on what they do.
 
         """
         from MySQLdb.constants import CLIENT, FIELD_TYPE
         from MySQLdb.converters import conversions
-        from weakref import proxy, WeakValueDictionary
-        
-        import types
+        from weakref import proxy
 
         kwargs2 = kwargs.copy()
-        
+
         if 'conv' in kwargs:
             conv = kwargs['conv']
         else:
@@ -171,7 +169,7 @@ class Connection(_mysql.connection):
             use_unicode = True
         else:
             use_unicode = False
-            
+
         use_unicode = kwargs2.pop('use_unicode', use_unicode)
         sql_mode = kwargs2.pop('sql_mode', '')
 
@@ -181,14 +179,14 @@ class Connection(_mysql.connection):
             client_flag |= CLIENT.MULTI_STATEMENTS
         if client_version >= (5, 0):
             client_flag |= CLIENT.MULTI_RESULTS
-            
+
         kwargs2['client_flag'] = client_flag
 
         super(Connection, self).__init__(*args, **kwargs2)
         self.cursorclass = cursorclass
         self.encoders = dict([ (k, v) for k, v in conv.items()
                                if type(k) is not int ])
-        
+
         self._server_version = tuple([ numeric_part(n) for n in self.get_server_info().split('.')[:2] ])
 
         db = proxy(self)
@@ -206,7 +204,7 @@ class Connection(_mysql.connection):
             def string_decoder(s):
                 return s.decode(string_decoder.charset)
             return string_decoder
-        
+
         string_literal = _get_string_literal()
         self.unicode_literal = unicode_literal = _get_unicode_literal()
         self.string_decoder = string_decoder = _get_string_decoder()
@@ -230,7 +228,7 @@ class Connection(_mysql.connection):
             # PEP-249 requires autocommit to be initially off
             self.autocommit(False)
         self.messages = []
-        
+
     def cursor(self, cursorclass=None):
         """
 
@@ -242,14 +240,15 @@ class Connection(_mysql.connection):
         """
         return (cursorclass or self.cursorclass)(self)
 
-    def __enter__(self): return self.cursor()
-    
+    def __enter__(self):
+        return self.cursor()
+
     def __exit__(self, exc, value, tb):
         if exc:
             self.rollback()
         else:
             self.commit()
-            
+
     def literal(self, o):
         """
 
@@ -271,7 +270,7 @@ class Connection(_mysql.connection):
         warn("begin() is non-standard and will be removed in 1.3",
              DeprecationWarning, 2)
         self.query("BEGIN")
-        
+
     if not hasattr(_mysql.connection, 'warning_count'):
 
         def warning_count(self):
@@ -311,7 +310,7 @@ class Connection(_mysql.connection):
             raise NotSupportedError("server is too old to set sql_mode")
         self.query("SET SESSION sql_mode='%s'" % sql_mode)
         self.store_result()
-        
+
     def show_warnings(self):
         """Return detailed information about warnings as a
         sequence of tuples of (Level, Code, Message). This
@@ -322,7 +321,7 @@ class Connection(_mysql.connection):
         r = self.store_result()
         warnings = r.fetch_row(0)
         return warnings
-    
+
     Warning = Warning
     Error = Error
     InterfaceError = InterfaceError