How to install PyNput on Replit

The problem I'm having is that I can't add the PyNput module to my environment in Replit. I'm getting this error when I click "install":

warning: no previously-included files found matching 'evdev/ecodes.c'
      The 'linux/input.h' and 'linux/input-event-codes.h' include files
      are missing. You will have to install the kernel header files in
      order to continue:

          dnf install kernel-headers-$(uname -r)
          apt-get install linux-headers-$(uname -r)
          emerge sys-kernel/linux-headers
          pacman -S kernel-headers

      In case they are installed in a non-standard location, you may use
      the '--evdev-headers' option to specify one or more colon-separated
      paths. For example:

          python setup.py \
            build \
            build_ecodes --evdev-headers path/input.h:path/input-event-codes.h
      \
            build_ext --include-dirs path/ \
            install

      hint: This usually indicates a problem with the package or the build
      environment.
  help: `evdev` (v1.7.1) was included because `python-template` (v0.1.0)
        depends on `pynput` (v1.7.7) which depends on `evdev`
exit status 1

I don't know how to fix this. I'm on Linux if that helps.

Solution

In your replit.nix file, in the deps list, add the following:

pkgs.python311Packages.pynput

Therefore, if you haven't added Nix packages before, you can copy and paste the full replit.nix:

{pkgs}: {
  deps = [
    pkgs.python311Packages.pynput
  ];
}

You can then import pynput normally.

The Replit environment will attempt to install the package using uv. To not let Replit do this every time you run the repl, add the following line to the .replit file, below the entrypoint line:

disableGuessImports = true

Now, you should be able to run pynput, and it will open in the Output tab when you run the repl.