Hello again,
@Alex Glaros and @Ben Duncan --
Thanks for your replies.
I was trying to do a weekly backup in pythonanywhere .
My script works finally (with many thanks to kind people out there like
yourselves). I can choose a day of the week and put that in
(weekday == int)
0 being Monday.
I remove the old file first and then get a new file for the backup.
My good script is below:-)

import datetime
import os

today = datetime.date.today()
weekday = today.weekday()

if (weekday == 0):
    os.system("rm -f pgbackup*")
    os.system("pg_dump --host=[hostname] --port=[port number]
--username=[username] --format=c --file=pgbackup`date +%F-%H%M`.dump
--dbname=[your_database_name]")

Catch you later !

On Wed, Nov 7, 2018 at 12:34 AM Alexandra Lee <palexa...@gmail.com> wrote:

> Hi. thanks for your reply. I need to take my question down.
>
> I got it.
>
> Kind regards,
> Alexandra
>
> On Mon, Nov 5, 2018 at 2:25 AM Alex Glaros <alexgla...@gmail.com> wrote:
>
>> Alexandra, I have not used it recently and only have my notes below:
>>
>> pg_dump --host=
>> yourPythonAnywhereDbName.postgres.pythonanywhere-services.com
>> --dbname=postgres_myDbName --(note: I don't know how to handle password)
>> --port=10097 --username=yourPythonAnywhereRole --format=c
>> --file=pg_alex_backup`date +%F-%H%M`.dump
>>
>> --
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>>
>

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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