Error when building CRITICAL: 'pelican.contents.Article object' has no attribute 'include'

[jitsejan]

• I have read the Filing Issues and subsequent “How to Get Help” sections of the documentation.
• I have searched the issues (including closed ones) and believe that this is not a duplicate.

• OS version and name: Mac 10.15.7
• Python version: 3.7.10
• Pelican version: 4.6.0
• Link to theme:
• Links to plugins:
• Link to your site:
• Link to your source: https://github.com/jitsejan/jitsejan.com
• Link to a Gist with the contents of your settings file:

Issue

Pelican was building fine last time I rebuild my website but now got this error all of a sudden. Looks like there is something wrong with the model and I might have defined something in my Markdown files that's not allowed but haven't been able to point out where the mistake is.

I am using 3.7.10 locally as well as on the CloudFlare worker where my site gets generated.

[avaris]

Error is from the theme, here specifically. It expects a include metadata/attribute on articles. That's not default. So presumably it comes from a plugin or actual metadata. Or maybe it was never there and it seems to "work" in Jinja2==2.11.3. I think Jinja2==3.x made it more strict and raises errors for foo in Undefined now. So I'd suggest guarding against that:

{% if article.include and 'angular' in article.include %}

[jitsejan]

Apologies for the (slight) delay. You are right and fixing the Jinja version the build is fine. Thanks!