Gert Cuykens a écrit :
> import MySQLdb
>
> class Db(object):
>
> def __enter__(self):
> pass
>
> def __init__(self,server,user,password,database):
> self._db=MySQLdb.connect(server , user , password , database)
> self._db.autocommit(True)
> self.cursor=self._db.cursor()
>
> def execute(self,cmd):
> self.cursor.execute(cmd)
> self.rowcount=int(self.cursor.rowcount)
isn't cursor.rowcount already an int ?
> def close(self):
> self.cursor.close()
> self._db.close()
>
> def __getattr__(self, name):
> attr = getattr(self._cursor, name,getattr(self._db, name, None))
> if attr is None:
> raise AttributeError("object %s has no attribute %s"
> %(self.__class__.__name__, name))
> return attr
>
> def __del__(self):
> try:
> self.close()
> finally:
> pass
> except:
> pass
The finally clause is useless here.
> def __exit__(self):
> pass
>
> if __name__ == '__main__':
> gert = Db('localhost','root','*****','gert')
> gert.execute('select * from person')
> for row in gert.cursor:
> print row
>
> with Db('localhost','root','*****','gert') as gert:
> gert.excecute('select * from person')
> for row in gert.cursor:
> print row
>
> Desktop/svn/db/Py/db.py:45: Warning: 'with' will become a reserved
> keyword in Python 2.6
> File "Desktop/svn/db/Py/db.py", line 45
> with Db('localhost','root','*****','gert') as gert:
> ^
> SyntaxError: invalid syntax
>
> I was thinking if it would be possible to create a object that uses
> it's own instance name as a atribute.
class Obj(object):
pass
toto = tutu = tata = titi = Obj()
What's an "instance name" ?
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