title: :IPythonCellExecute does not send code to terminal using neovim
body: <p>I installed <a href="https://github.com/hanschen/vim-ipython-cell" rel="nofollow noreferrer">vim-ipython-cell</a> and set it up with tmux. When i now try to send a cell to the terminal using for example <code>\+c</code> the command <code>:IPythonCellExecuteCell</code> shows up but there is nothing in the IPython terminal. But using the shortcut <code>ctlr+ c+c</code> from <a href="https://github.com/jpalardy/vim-slime" rel="nofollow noreferrer">vim-slime</a> works without problems, <a href="https://i.stack.imgur.com/1Zbj8.png" rel="nofollow noreferrer">see image</a>. I'm using ubuntu.</p>
  <p>What could be the reason for that?</p>
  <p>Thanks in advance!</p>
  <p>My current <code>init.vim</code> file is given below:</p>
  <pre><code>set nocompatible
    filetype off
     
    call plug#begin('~/.config/nvim/plugged')
    Plug 'preservim/nerdtree'
    Plug 'jpalardy/vim-slime', {'for': 'python'}
    Plug 'hanschen/vim-ipython-cell', { 'for': 'python' }
    Plug 'morhetz/gruvbox'
    call plug#end()
    
   colorscheme gruvbox
    
   map &lt;silent&gt; &lt;C-n&gt; :NERDTreeFocus&lt;CR&gt;
    
   autocmd TermOpen * setlocal nonu
    
   let g:slime_target = &quot;tmux&quot;
   let g:slime_python_ipython = 1
   let g:ipython_cell_tag = &quot;# %%&quot;
   let g:slime_dont_ask_default = 1
   &quot; always send text to the top-right pane in the current tmux tab without asking
   let g:slime_default_config = {
                \ 'socket_name': get(split($TMUX, ','), 0),
                \ 'target_pane': '{top-right}' }
    
   let g:python3_host_prog = &quot;/home/simon/miniconda3/bin/python&quot;
   &quot; Window Navigation with Ctrl-[hjkl]
   noremap &lt;C-J&gt; &lt;C-W&gt;j
   noremap &lt;C-K&gt; &lt;C-W&gt;k
   noremap &lt;C-H&gt; &lt;C-W&gt;h
   noremap &lt;C-L&gt; &lt;C-W&gt;l
   &quot;------------------------------------------------------------------------------
   &quot; ipython-cell configuration
   &quot;------------------------------------------------------------------------------
   &quot; Keyboard mappings. &lt;Leader&gt; is \ (backslash) by default
   &quot; map &lt;Leader&gt;s to start IPython
   nnoremap &lt;Leader&gt;s :SlimeSend1 ipython --matplotlib&lt;CR&gt;
   &quot; map &lt;Leader&gt;r to run script
   nnoremap &lt;Leader&gt;r :IPythonCellRun&lt;CR&gt;
   &quot; map &lt;Leader&gt;R to run script and time the execution
   nnoremap &lt;Leader&gt;R :IPythonCellRunTime&lt;CR&gt;
   &quot; map &lt;Leader&gt;c to execute the current cell
   nnoremap &lt;Leader&gt;c :IPythonCellExecuteCell&lt;CR&gt;
   &quot; map &lt;Leader&gt;C to execute the current cell and jump to the next cell
   nnoremap &lt;Leader&gt;C :IPythonCellExecuteCellJump&lt;CR&gt;
   &quot; map &lt;Leader&gt;l to clear IPython screen
   nnoremap &lt;Leader&gt;l :IPythonCellClear&lt;CR&gt;
   &quot; map &lt;Leader&gt;x to close all Matplotlib figure windows
   nnoremap &lt;Leader&gt;x :IPythonCellClose&lt;CR&gt;
   &quot; map [c and ]c to jump to the previous and next cell header
   nnoremap [c :IPythonCellPrevCell&lt;CR&gt;
   nnoremap ]c :IPythonCellNextCell&lt;CR&gt;
   &quot; map &lt;Leader&gt;h to send the current line or current selection to IPython
   nmap &lt;Leader&gt;h &lt;Plug&gt;SlimeLineSend
   xmap &lt;Leader&gt;h &lt;Plug&gt;SlimeRegionSend
   &quot; map &lt;Leader&gt;p to run the previous command
   nnoremap &lt;Leader&gt;p :IPythonCellPrevCommand&lt;CR&gt;
   &quot; map &lt;Leader&gt;Q to restart ipython
   nnoremap &lt;Leader&gt;Q :IPythonCellRestart&lt;CR&gt;
   &quot; map &lt;Leader&gt;d to start debug mode
   nnoremap &lt;Leader&gt;d :SlimeSend1 %debug&lt;CR&gt;
   &quot; map &lt;Leader&gt;q to exit debug mode or IPython
   nnoremap &lt;Leader&gt;q :SlimeSend1 exit&lt;CR&gt;
   &quot; map &lt;F9&gt; and &lt;F10&gt; to insert a cell header tag above/below and enter insert mode
   nmap &lt;F9&gt; :IPythonCellInsertAbove&lt;CR&gt;a
   nmap &lt;F10&gt; :IPythonCellInsertBelow&lt;CR&gt;a
   &quot; also make &lt;F9&gt; and &lt;F10&gt; work in insert mode
   imap &lt;F9&gt; &lt;C-o&gt;:IPythonCellInsertAbove&lt;CR&gt;
   imap &lt;F10&gt; &lt;C-o&gt;:IPythonCellInsertBelow&lt;CR&gt;
    
   set number
   set smartindent
   set autoindent
   set hlsearch
   set nu
   set ruler
   syntax on
   filetype plugin on
  
                                                                                                                                                                            
  </code></pre>