pip install git+https://github.com/eagletrt/canlib.git#egg=canlib
Completion is only available if a script is installed and invoked through an entry point, not through the python command. Once the executable is installed, calling it with a special environment variable will put Click in completion mode.
Add this to ~/.bashrc:
eval "$(_CANLIB_COMPLETE=bash_source canlib)"
Add this to ~/.zshrc:
eval "$(_CANLIB_COMPLETE=zsh_source canlib)"
Add this to ~/.config/fish/completions/canlib.fish:
eval (env _CANLIB_COMPLETE=fish_source canlib)