Does Jinja read the file from the hard drive every time it is requested?

[boludoz]

Does Jinja read the file from the hard drive every time it is requested? Is there a cache made in C++ with unordered maps or something like that?

[ThiefMaster]

Why would one use C++ for that? Python dict and similar structures are already implemented in C and highly efficient.

Anyway, as per the FAQ:

Jinja also makes extensive use of caching. Templates are cached by name after loading, so future uses of the template avoid loading. The template loading itself uses a bytecode cache to avoid repeated compiling. The caches can be external to persist across restarts. Templates can also be precompiled and loaded as fast Python imports.

[boludoz]

Yes, but it caught my attention that every time I modify an HTML it is read again.

[boludoz]

I don't have to implement any cache or anything like that then?

[boludoz]

You're right, dict is similar to unordered map, I hadn't thought of that.