diff --git a/paramecio/citoplasma/sessions.py b/paramecio/citoplasma/sessions.py
index cd9d875..61a404f 100644
--- a/paramecio/citoplasma/sessions.py
+++ b/paramecio/citoplasma/sessions.py
@@ -165,125 +165,6 @@ elif config.session_opts['session.type']=='redis':
         pass
 
 else:
-    """
-    def generate_session():
-        
-        if config.cookie_name in request.environ:
-        
-            request.environ[config.cookie_name].invalidate()
-            
-        else:
-            
-            request.environ[config.cookie_name]=request.environ.get(config.cookie_name, {})
-            
-        return request.environ[config.cookie_name]
-
-    def regenerate_session():
-        
-        if config.cookie_name in request.environ:
-        
-            request.environ[config.cookie_name].invalidate()
-
-        else:
-            
-            request.environ[config.cookie_name]=request.environ.get(config.cookie_name, {})
-            
-        return request.environ[config.cookie_name]
-    
-    def get_session():
-        print(request.environ.keys())
-        if config.cookie_name in request.environ:
-        
-            return request.environ[config.cookie_name]
-            
-        else:
-            return {}
-    """
-    """
-    secret=JSONWebSignatureSerializer(config.key_encrypt)
-    
-    def generate_session():
-
-        token=create_key(30).replace('/', '#')
-        
-        session={'token': token}
-        
-        s=secret.dumps(session)
-        try:
-            response.set_cookie(config.cookie_name, session, path=config.session_opts['session.path'])
-        
-            request.environ['session']=s
-            
-        except:
-            pass
-        
-        return session
-    
-    def regenerate_session():
-        
-        s=generate_session()
-        
-        return ParamecioSession(s)
-        
-    def load_session(cookie):
-        
-        try:
-            s=secret.loads(cookie)
-            
-        except:
-            s={}
-            
-        return s
-        
-    def save_session(cookie, session):
-        generate_session(session)
-    """
-    """
-    def generate_session(session={}):
-        
-        #secret=URLSafeSerializer(config.key_encrypt)
-        
-        #session=secret.dumps(session)
-        
-        token=create_key(30).replace('/', '#')
-
-        s={'token': token}
-
-        response.set_cookie(config.cookie_name, token, path=config.session_opts['session.path'])
-        
-        request.environ['session']=s
-        
-        return s
-        
-    def regenerate_session():
-        
-        token=create_key(30).replace('/', '#')
-
-        s={'token': token}
-
-        response.set_cookie(config.cookie_name, token, path=config.session_opts['session.path'])
-        
-        return ParamecioSession(s)
-
-
-    cache=Cache(config.session_opts['session.data_dir'])
-
-    def load_session(token):
-        
-        # Here get the function for load session
-
-        if token in cache:
-            s=json.loads(cache[token])
-        else:
-            s={'token': token}
-            cache.add(token, json.dumps(s))
-            
-        return s
-
-    def save_session(token, session):
-            
-        cache[token]=json.dumps(session)
-    """
     
     def generate_session(session={}):
         
@@ -359,78 +240,3 @@ else:
                 json_session=json.dumps(session)
                 
                 f.write(json_session)
-
-    """
-    region = make_region().configure(
-    'dogpile.cache.dbm',
-    expiration_time = 3600,
-    arguments = {
-            "filename":config.session_opts['session.data_dir']+"/sessions.dbm"
-        }
-    )
-    
-    def create_value():
-        return False
-    def load_session(token):
-        
-        # Here get the function for load session
-        
-        json_s=region.get_or_create(token, create_value)
-        
-        if json_s:
-            s=json.loads(json_s)
-        else:
-            s={'token': token}
-            region.set(token, json.dumps(s))
-   
-        return s
-
-    def save_session(token, session):
-            
-        #cache[token]=json.dumps(session)
-        region.set(token, json.dumps(session))
-    """
-
-
-"""
-def generate_session():
-    s=request.environ.get(config.cookie_name)
-    s.invalidate()
-
-def get_session():
-    
-    try:
-    
-        if config.cookie_name in request.environ:
-            
-            return request.environ.get(config.cookie_name)
-            #ParamecioSession()
-        else:
-            return ParamecioSession({})
-    
-    except:
-        
-        return ParamecioSession({})
-"""
-"""
-    try: 
-        
-        # Check if session was loaded, if loaded, get cache
-        
-        #return request.environ.get(config.cookie_name)
-        code_session=request.get_cookie(config.cookie_name)
-        
-        try:
-        
-            #with fopen(config.session_opts['session.data_dir']) as signed_session:
-            pass
-                
-
-        except:
-            
-            return {}
-    
-    except:
-        
-        return {}
-    """
diff --git a/paramecio/cromosoma/databases/sqlalchemy.py b/paramecio/cromosoma/databases/sqlalchemy.py
index 81c93aa..c935408 100644
--- a/paramecio/cromosoma/databases/sqlalchemy.py
+++ b/paramecio/cromosoma/databases/sqlalchemy.py
@@ -50,7 +50,7 @@ class SqlClass:
                         import MySQLdb.cursors
                         SqlClass.cursors_connect=MySQLdb.cursors.DictCursor
                 
-                    engine=create_engine("mysql+%s://%s:%s@%s/%s?charset=utf8mb4" % (self.connection['db_type'], self.connection['user'], self.connection['password'], self.connection['host'], self.connection['db']), pool_recycle=self.pool_recycle, echo_pool=True, pool_size=self.pool_size)
+                    engine=create_engine("mysql+%s://%s:%s@%s/%s?charset=utf8mb4" % (self.connection['db_type'], self.connection['user'], self.connection['password'], self.connection['host'], self.connection['db']), pool_recycle=self.pool_recycle, echo_pool=True, pool_size=self.pool_size, pool_pre_ping=True)
                     
                 except:
                     e = sys.exc_info()[0]
@@ -64,7 +64,7 @@ class SqlClass:
             
             self.conn=engine.raw_connection()
 
-            self.conn.ping(True)
+            #self.conn.ping(True)
 
         else:
             
@@ -81,7 +81,7 @@ class SqlClass:
                     passwd=self.connection['password'],
                     db=self.connection['db'],
                     charset='utf8mb4',
-                    cursorclass=MySQLdb.cursors.DictCursor)
+                    cursorclass=pymysql.cursors.DictCursor)
                     
             else: