ERROR: Python 3.11.0 Installation Error

[dogukankaratas]

After I updated my Python to 3.11.0, I'm no more capable of installing Dash with pip.

First I got the following error:

Then I installed a newer version of C++ BuildTools and now I got another one;

Any suggestions?

Thanks in advance.

[T4rk1n]

brotli has not published wheels for python 3.11, in the meantime new wheels are published, the dependency needs to be compiled manually, for that you need to install the python-dev packages for python 3.11.

[T4rk1n]

For windows it needs the vs c++ build tools.

[dogukankaratas]

Thanks for quick reply. I already installed vs c++ build tools but still got an error.

[alexcjohnson]

Here's the root issue: google/brotli#984
@dogukankaratas it's a bit beyond our scope to help with compiling dependent packages but maybe someone over there can help, in the event that they don't fix the issue quickly themselves by releasing Py3.11-compatible wheels.

@T4rk1n I wonder though, compress defaults to False since v2.0 (#1707) - what if we removed flask-compress from our required dependencies and just added a note to the compress docs like "to use this functionality you must also install the flask-compress package (and a clear error if you invoke compress without it)? I suppose ideally we would only do that in a major release, would it be too much in a minor?

[T4rk1n]

compress defaults to False since v2.0

If it's false by default I think we can put it in extra require (dash[compress]) and message in case missing without a major version.

[alexcjohnson]

Let's do that then. It'll make our installation lighter in addition to solving this problem for what might turn out to be a lot of folks if the brotli maintainers don't act quickly.

[alexcjohnson]

#2291 is about all we can do for this from our side.