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Editorial Team
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Asked: 2026-05-23T04:57:18+00:00

Let’s say I type a = [1, 2] in a .py file in vim

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enter image description here

Let’s say I type

a = [1, 2]

in a .py file in vim and when I type “a.” and hit TAB, I would like to get suggestion menu that is related to lists.

Edit 1 in response to Robin’s comment:
I think it’s possible in vim, because there is a plugin that checks if a given python code is a valid code (I don’t know what the plugin is called). Take a look:

enter image description here

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1 Answer

  1. Editorial Team

    Recent versions of vim come with an omnicompletion script called pythoncomplete.

    Open up a python file, and type

    :set completefunc?

    to check what the current completion function is. If you get back

    completefunc=

    then no completionfunction is currently set. You can set pythoncomplete to be the completion function by typing 

    :set completefunc=pythoncomplete#Complete

    and you can set this to be the default for python files using (in your vimrc)

    autocmd FileType python set completefunc=pythoncomplete#Complete

    Now when you’re in vim, you can use omnicomplete using Ctrl+X Ctrl+O and you should get a popup menu as shown below:

    list completion

    You can also bind this to the tab key in insert mode with (in your vimrc):

    inoremap <Tab> <C-x><C-o>

    To find out more about interacting with the dropdown menu that appears, try

    :help ins-completion
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