Обсуждение: Python os.system module handle errors

Hi all,

When I create a database dump in python script and if there are some errors (user_name is not correct, db_name doesn't
existor something else) I need to send e-mail notification to admin. How can I handle these errors?
 

Example:
----------------------------------------------------------------------------#!/usr/bin/python
import os

os.system("pg_dump -U user_name -i -F c -v db_name -f file_name.backup") 
print "%s backup complete" % ("Database XXX")
----------------------------------------------------------------------------

I tried to use, but it doesn't work.

----------------------------------------------------------------------------
#!/usr/bin/python
import os

try:
    os.system("pg_dump -U user_name -i -F c -v db_name -f file_name.backup")
    print "%s backup complete" % ("Database XXX")
except os.error:

    # ...
    # here sending e-mail if there is an error of backing up
    # ...

    print "Backup error %s" % error


--
Vadim

On May 04 04:50, Vadim Pestovnikov wrote:
> When I create a database dump in python script and if there are some
> errors (user_name is not correct, db_name doesn't exist or something
> else) I need to send e-mail notification to admin. How can I handle
> these errors?

I don't think this has anything to do with PostgreSQL. IMHO you should
start with reading documentation of Python os module (especially
OSError exceptions part) and consult to a python related mailing list.


Regards.