diff --git a/eopayment/tipi.py b/eopayment/tipi.py
index 68db4f0..542e767 100644
--- a/eopayment/tipi.py
+++ b/eopayment/tipi.py
@@ -95,12 +95,12 @@ class Payment(PaymentCommon):
             refdet = str(refdet)
             if 6 > len(refdet) > 30:
                 raise ValueError('len(REFDET) < 6 or > 30')
-        except Exception, e:
+        except Exception as e:
             raise ValueError('REFDET format invalide, %r' % refdet, e)
         if objet is not None:
             try:
                 objet = str(objet)
-            except Exception, e:
+            except Exception as e:
                 raise ValueError('OBJET must be a string', e)
             if not objet.replace(' ','').isalnum():
                 raise ValueError('OBJECT must only contains '
@@ -113,7 +113,7 @@ class Payment(PaymentCommon):
                 raise ValueError('no @ in MEL')
             if not (6 <= len(mel) <= 80):
                 raise ValueError('len(MEL) is invalid, must be between 6 and 80')
-        except Exception, e:
+        except Exception as e:
             raise ValueError('MEL is not a valid email, %r' % mel, e)
 
         saisie = saisie or self.saisie