Error on xml file generation for hiking layer

[doubotis]

Hello,

I'm on the process to build the .xml files to feed to Mapnik.
I succeed to build the slopes.xml file, but I get an error when trying to build the file for hiking layer :

$ wmt-makedb hiking mapstyle > hiking.xml
Traceback (most recent call last):
  File "/home/wmtenv/bin/wmt-makedb", line 251, in <module>
    exit(action())
  File "/home/wmtenv/bin/wmt-makedb", line 167, in mapstyle
    print(env.get_template(f'{self.mapdb.site_config.MAPTYPE}.xml.jinja').render())
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 989, in render
    return self.environment.handle_exception(exc_info, True)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 754, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/_compat.py", line 37, in reraise
    raise value.with_traceback(tb)
  File "/home/wmtenv/lib/python3.7/site-packages/wmt_db/data/map-styles/routes.xml.jinja", line 2, in top-level template code
    {% extends "base_map.xml.jinja" %}
  File "/home/wmtenv/lib/python3.7/site-packages/wmt_db/data/map-styles/base_map.xml.jinja", line 57, in top-level template code
    {% block content %}{% endblock %}
  File "/home/wmtenv/lib/python3.7/site-packages/wmt_db/data/map-styles/routes.xml.jinja", line 5, in block "content"
    {% include "inc/routes-worldview.jinja" %}
  File "/home/wmtenv/lib/python3.7/site-packages/wmt_db/data/map-styles/inc/routes-worldview.jinja", line 4, in top-level template code
    {{ style.line(color.INT, width="1.3") }}
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 408, in getattr
    return getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'style' is undefined

I got a hiking.xml file at the end of execution, but the contents if empty.

Do you have any ideas about this error ? It seems to reference the style property in routes-worldview.jinja, but I have no idea why the style is undefined in my case.

[lonvia]

This works fine for me. Here is what I did:

virtualenv -p python3 --system-site-packages wmtenv
. wmtenv/bin/activate

pip install -U osmium PyCairo \
               SQLAlchemy GeoAlchemy2 \
               git+https://github.com/waymarkedtrails/osgende@master \
               git+https://github.com/waymarkedtrails/waymarkedtrails-shields@master
               git+https://github.com/waymarkedtrails/waymarkedtrails-backend@master
mkdir symbols
wmt-makedb hiking mapstyle > hiking.xml

Can you describe your installation environment?