Question

I’ve just started learning Python recently and am using Pyramid as my web framework.

I’m trying to add a static view at localhost/images/misc:

config.add_static_view('images', 'C:/Project/Images/')
config.add_static_view('images/misc', 'C:/Path/To/Other/Images/')

But I get an error: File does not exist: C:/Project/images/misc

So it seems that the second line adding images/misc as a static view doesn’t have any effect.

I’ve been searching for a while for a way to do this, but I haven’t found anything. Is it possible to add a static view where the name contains a subdirectory? If so, how?

Answer 1

Under the hood, pyramid turns the name part of the add_static_view() method into a Pyramid route predicate of the form name/*subpath (where name can contain slashes itself). A dedicated static asset view is attached to that route predicate.

In your configuration that means there would be both images/*subpath and images/misc/*subpath route predicates, in that order. When you then request a URL with the path images/misc/foo.png Pyramid finds the images/*subpath predicate first, and tries to look up the misc path element in the 'C:/Project/Images/' folder, which fails.

Lucky for you, you can reverse the order of the registrations, simply register the images/misc path first:

config.add_static_view('images/misc', 'C:/Path/To/Other/Images/')
config.add_static_view('images', 'C:/Project/Images/')

Now the images/misc/*subpath predicate is registered first, and will match any images/misc/ URLs before the other predicate is tested.