473,499 Members | 1,525 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Re: Error Handling

En Thu, 17 Apr 2008 16:19:12 -0300, Victor Subervi <vi***********@gmail.comescribió:
try:
cursor.execute(sql)
print '¡Exito en introducir!<br />'
print '<i>Esta página va a regresar a la página principal del carrito
de compras en 10 segundos.</i>'
except IntegrityError:
print 'Lo siento, pero el ID que entraste está usado actualmente por
otra entrada. Favor de dar para atráz y escojer otro número.'
except OperationalError:
print 'Lo siento, pero has añadido un carácter extraño a un número (o
en "ID", "precio", "recámaras" o "baños". Favor de dar para atráz y escojer
otro número.'
except:
print 'Lo siento, pero hay un error. Favor de dar para atráz y
averiguar donde está el error, y reintentar.'
When I enter and ID that is not a number, it should trigger the
IntegrityError. Instead, I get this in the error log:

[Thu Apr 17 12:06:37 2008] [error] [client 190.166.0.245] PythonHandler
mod_python.cgihandler: NameError: global name 'IntegrityError' is not
defined, referer: http://livestocksling.com/bre/iud.py
Looks like IntegrityError and OperationalError are defined inside your database module. Either use:

from my_database_module import IntegrityError, OperationalError

try
...
except OperationalError: ...
except IntegrityError: ...
except Exception: ...

or else:

import my_database_module

try
...
except my_database_module.OperationalError: ...
except my_database_module.IntegrityError: ...
except Exception: ...

It's the same as any other symbol, like math.sqrt or os.rename

Note that I've not used a bare except: clause; it's not a good idea. sys.exit() raises the SystemExit exception, and pressing Ctrl-C raises KeyboardInterrupt; a bare except: will catch them, effectively nullifying the intended purpose.

--
Gabriel Genellina

Jun 27 '08 #1
0 697

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

2
3254
by: WSeeger | last post by:
When creating a new class, is it encouraged to always include error handling routines within your LET and GET procedures? It's seems that most text books never seem to include much about error...
12
6642
by: Christian Christmann | last post by:
Hi, assert and error handling can be used for similar purposes. When should one use assert instead of try/catch and in which cases the error handling is preferable? I've read somewhere that...
6
8435
by: Squirrel | last post by:
I have a command button on a subform to delete a record. The only statement in the subroutine is: DoCmd.RunCommand acCmdDeleteRecord The subform's recordsource is "select * from tblVisit order...
13
4430
by: Thelma Lubkin | last post by:
I use code extensively; I probably overuse it. But I've been using error trapping very sparingly, and now I've been trapped by that. A form that works for me on the system I'm using, apparently...
21
4372
by: Anthony England | last post by:
Everyone knows that global variables get re-set in an mdb when an un-handled error is encountered, but it seems that this also happens when the variable is defined as private at form-level. So...
3
2835
by: Stefan Johansson | last post by:
Hi all I'am moving from Visual Foxpro and have a question regarding "best practice" error handling in vb .net. In VFP I have always used a "central" error handling object in order to have a...
4
1905
by: Al Williams | last post by:
Hi, I have error handling in place throughout my application. I also start the application wrapped in error handling code to catch any unexpected exceptions (i.e. exceptions that occur where I...
10
2267
by: Anthony England | last post by:
(sorry for the likely repost, but it is still not showing on my news server and after that much typing, I don't want to lose it) I am considering general error handling routines and have...
0
11550
by: Lysander | last post by:
Thought I would give something back with a few articles. This article is a bit of code to add error handling. When I have time, I want to write articles on multilingual databases, and Access...
9
3276
by: MrDeej | last post by:
Hello guys! We have an SQL server which sometimes makes timeouts and connection errors. And we have an function witch writes and updates data in 2 tables on this server. When the SQL server error...
0
7007
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
7171
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
7220
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
1
6893
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
7386
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
4599
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...
0
3098
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The...
0
1427
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated ...
0
295
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.