[GRASS-dev] grass.run_command() and Python keywords - was Re: [GRASS-user] i.maxlik

[Moritz Lennert]

On 03/03/13 11:36, Markus Neteler wrote:
> (switching to grass-dev due to a potential bugfix needed)
>
> On Wed, Feb 13, 2013 at 12:27 PM, Johannes Radinger
> <johannesradinger at gmail.com>  wrote:
>> On Wed, Feb 13, 2013 at 10:36 AM, Rebecca Stedham
>> <rlstedham at btinternet.com>  wrote:
>>> Hello,
>>>
>>> I am running i.maxlik in python - attempting to automate a processing chain.
>>> I use the command:
>>>
>>> grass.run_command('i.maxlik', group= group, subgroup=subgroup,
>>> class='classification', sigfile = sigfile, verbose = True)
>>>
>>> Infuriatingly, however 'class' is a python keyword and it doesn't run due to
>>> 'invalid syntax'.
>>
>> I had a similar issue with v.distance which uses 'from', another python keyword.
>> Here the pythoncode is '_from' which looks like:
>> grass.run_command("v.distance",_from="xxx",to="xxx",...)
>>
>> Maybe there is something similar for class ('_class'?) in i.maxlik.
>
> Here a solution was suggested:
>
> http://gis.stackexchange.com/questions/50753/is-there-a-workaround-for-grass-i-maxlik-class-being-a-keyword-in-python
>
> Not sure how to deal with that.

At the same link there is also a reference to the "official" GRASS solution:

http://grasswiki.osgeo.org/wiki/GRASS_Python_Scripting_Library#Use_Python_reserved_keyword

which corresponds to Johannes' suggestion. Did this not work ?

Moritz