[GRASS-user] RES: v.centerline addon

[cesar at fototerra.com.br]

Hi Moritz and colleagues!!

 

Thank you for write and being help me. About the python version make sense
because I’m using Python 3.7.

 

I’ll try install Python 2.x and run again the addon v.centerline and I’ll
tell about the result.

 

Tks.

 

César de Paula

 

De: Moritz Lennert <mlennert at club.worldonline.be> 
Enviada em: quinta-feira, 5 de março de 2020 05:10
Para: cesar at fototerra.com.br; grass-user at lists.osgeo.org
Assunto: Re: [GRASS-user] v.centerline addon

 

 

On 4/03/20 18:10, cesar at fototerra.com.br <mailto:cesar at fototerra.com.br>
wrote:

Hello!!!

 

I’m new user on GRASS and I’m trying to execute the addon v.centerline on
GRASS 7.9. As input I’m using a shapefile containing line (MultiLineString)
as geometry and when I have run the v.centerline an erro is returning:

 

“Traceback (most recent call last):

  File "C:\Users\cesar\AppData\Roaming\GRASS7\addons/scripts

/v.centerline.py", line 319, in <module>

    main()

  File "C:\Users\cesar\AppData\Roaming\GRASS7\addons/scripts

/v.centerline.py", line 111, in main

    segment_input += 'P ' + category.strip()

TypeError: can only concatenate str (not "bytes") to str

(Wed Mar  4 17:27:25 2020) Comando terminado (3 segundos)


(Wed Mar  4 17:27:25 2020)


v.centerline input=Linha_rio_teste_Centerline at PERMANENT output=teste range=2
refline=2

Traceback (most recent call last):

  File "C:\Users\cesar\AppData\Roaming\GRASS7\addons/scripts

/v.centerline.py", line 319, in <module>

    main()

  File "C:\Users\cesar\AppData\Roaming\GRASS7\addons/scripts

/v.centerline.py", line 111, in main

    segment_input += 'P ' + category.strip()

TypeError: can only concatenate str (not "bytes") to str

(Wed Mar  4 17:27:28 2020) Comando terminado (2 segundos)”

 

I would like help to try understand what’s happening.

 

I would guess that this is a Python 3 vs Python 2 issue. I never updated the
addon to Python 3. If someone else can do this, it would be great, as I'm
currently on mission abroad and do not really have the necessary access to
the development tools to do this from here.

 

Moritz

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