Looks like regular requests is case-insensitive: https://requests.readthedocs.io/en/master/user/quickstart/#response-headers

Maybe we need a wrapper object to do it that way. I removed the title.lower() because it allocates a second copy of the string when one already exists.

We could have added .lower() onto the title as it is put into the dict. To handle the differences in the PyPortal, I submitted a PR that creates a new dict and just copies the headers with lower case. This way both older and newer versions of this library should work with it.

By wrapper object, are you suggesting adding a function like get_header() that would accept lowercase and uppercase or maybe a property that lowercases it on the fly or something else?

Regular requests has a CaseInsensitiveDict class for exactly this reason:
https://github.com/psf/requests/blob/3bb13f8fbb9d4ed1a20bd33495cdc087eb062ca0/requests/structures.py#L37

We could have added .lower() onto the title as it is put into the dict. To handle the differences in the PyPortal, I submitted a PR that creates a new dict and just copies the headers with lower case. This way both older and newer versions of this library should work with it.

Calling .lower() is copying the string. I'm really trying to avoid that.

By wrapper object, are you suggesting adding a function like get_header() that would accept lowercase and uppercase or maybe a property that lowercases it on the fly or something else?

No, I'm thinking along the lines of what Dan pointed out. Create an object that acts like a dictionary and does a case insensitive search on each access. That way you only pay the cost on the headers you care about.

Ok cool. Thanks. I just wanted to make sure I understood.

Is this still valid? Some header fixes were recently merged in, and if this still exists, I'm happy to work on it.

@makermelissa and @tannewt with some other bugs, I cleaned up how headers are handled. Is there any more work there I can do?

I have no idea. I think you know better than I do.

I feel this is good to close