Windows + gVim + Poetry python development environment construction

Target

When developing with Windows + gVim + Poetry, build an environment where library code completion and linters work.

gVim installation

• Download from kaoriya site download page

• Unzip the downloaded zip and add the folder containing gvim.exe to your PATH.

Install git for windows

• Download from git for windows official website

• Run the downloaded installer
• No need to change options.

Install vim plugin

• Install the vim plugin vim-lsp, ALE.
• Execute the following command with powershell --If you manage your own package, please install it there.

cd ~
New-Item vimfiles/pack/mypackage/opt -ItemType Directory
cd vimfiles/pack/mypackage/opt
git clone https://github.com/prabirshrestha/vim-lsp.git
git clone https://github.com/prabirshrestha/async.vim.git
git clone https://github.com/dense-analysis/ale.git

Added the following to ~ / _vimrc

let g:ale_completion_enabled = 1
packadd ale 
let g:ale_lint_on_save = 1
let g:ale_sign_column_always = 1
packadd async.vim
packadd vim-lsp
let g:lsp_diagnostics_enabled = 0 "Error display is done with ALE
function! s:configure_lsp() abort
  setlocal omnifunc=lsp#complete
  nnoremap <buffer> <C-]> :<C-u>LspDefinition<CR>
  nnoremap <buffer> gd :<C-u>LspDefinition<CR>
  nnoremap <buffer> gD :<C-u>LspReferences<CR>
  nnoremap <buffer> gs :<C-u>LspDocumentSymbol<CR>
  nnoremap <buffer> gS :<C-u>LspWorkspaceSymbol<CR>
  nnoremap <buffer> gQ :<C-u>LspDocumentFormat<CR>
  vnoremap <buffer> gQ :LspDocumentRangeFormat<CR>
  nnoremap <buffer> K :<C-u>LspHover<CR>
  nnoremap <buffer> <F1> :<C-u>LspImplementation<CR>
  nnoremap <buffer> <F2> :<C-u>LspRename<CR>
endfunction

"Settings for python
if executable('pyls')
    augroup lsp_pyls_enable
        autocmd!
        autocmd User lsp_setup call lsp#register_server({
                    \ 'name': 'pyls',
                    \ 'cmd': {server_info->['pyls']},
                    \ 'whitelist': ['python'],
                    \ })
        autocmd FileType python call s:configure_lsp()
        autocmd FileType python imap <expr> . ".\<C-X>\<C-O>"
    augroup end
endif

python installation

• Download the version of the python installer you want to use from python official website

• This time, download python3.7.5.

• Run the downloaded installer.

Installing the Visual C ++ redistributable package

• Required to install python-language-server for code completion
• Download the installer from the Visual C ++ Download Page
• Run the downloaded installer

installation of poetry

• Start powershell and execute the following command

pip install --user --upgrade pip
pip install poetry

Creating a Poetry project

• Execute the following command in the directory where you want to create a project

poetry new testproject
cd testproject
poetry add --dev python-language-server
poetry add --dev flake8

start gVim

• When starting gVim, enter the poetry shell before starting it.

cd testproject
poetry shell
gvim main.py

• If the file is not compliant with pep8 when saved, the error part will be displayed.
• Completion can be done with <C-x> <C-o>, but after entering. (Dot), completion will appear automatically.