I'm currently on project 1 wiki in cs50 web. The distribution code already gave me the blocks on layout.html and extend functions on index.html. For some reason, the code I put in the blocks in index.html doesn't seem to be extending into layout.html.

This is my layout.html:

enter image description here

and here is my index.html:

enter image description here

My index.html when run looks like this:

enter image description here

Why isn't the index.html extending?

  • Hi I have exactly same problem... have you solved this?
    – Fernando
    Jul 30, 2021 at 0:55

1 Answer 1


I had the same problem, I have forgotten to run python.

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