[GRASS-user] use pipe character in a script

[Paulo van Breugel]

On Fri, Apr 1, 2022 at 10:26 AM Paulo van Breugel <p.vanbreugel at gmail.com>
wrote:

>
>
> On Wed, Mar 23, 2022 at 8:59 AM Uwe Fischer <gisfisch at t-online.de> wrote:
>
>> Hello,
>>
>>
>>
>> I try to fill a certain attribute column with a variable plus a Pipe
>> character (|) in a python script:
>>
>>
>>
>> value_to_fillin = myvariable + '|'
>>
>> grass.run_command(‘v.db.update‘, map='mymap', column='mycol',
>> value=value_to_fillin)
>>
>
> This works for me:
>
>     import grass.script as gs
>     valuetofillin = "myvariable{}".format('a')
>     gs.run_command('v.db.update', map='aaa', column='aa',
> value=valuetofillin)
>

Sorry, that should have been:

    valuetofillin = "myvariable{}".format('|')
    gs.run_command('v.db.update', map='aaa', column='aa',
value=valuetofillin)


>
> Btw, make sure to use the right single quotation marks around v.db.update.
> In your example, you are using pretty print quotation marks around
> v.db.update, so perhaps that is the culprit?
>
>
>
>>
>>
>>
>> But it does not work. When I try to place there 'xx' instead of the pipe,
>> it works.
>>
>>
>>
>> Does the pipe have special meaning in Python or GRASS and therefore is
>> not available as normal character? Is there a workaround (because the pipe
>> must be there to meet my data transfer requirements)
>>
>>
>>
>> Regards, Uwe
>>
>>
>> _______________________________________________
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>> grass-user at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/grass-user
>>
>
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