My full vimrc

.vimrc

syntax on

call plug#begin('~/.vim/plugged')

Plug 'scrooloose/nerdtree'  " file list
Plug 'majutsushi/tagbar'  " show tags in a bar (functions etc) for easy browsing
Plug 'vim-airline/vim-airline'  " make statusline awesome
Plug 'vim-airline/vim-airline-themes'  " themes for statusline 
Plug 'jonathanfilip/vim-lucius'  " nice white colortheme
Plug 'davidhalter/jedi-vim'   " jedi for python
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'  "to highlight files in nerdtree
Plug 'Vimjas/vim-python-pep8-indent'  "better indenting for python
Plug 'kien/ctrlp.vim'  " fuzzy search files
Plug 'tweekmonster/impsort.vim'  " color and sort imports
Plug 'wsdjeg/FlyGrep.vim'  " awesome grep on the fly
Plug 'w0rp/ale'  " python linters
Plug 'airblade/vim-gitgutter'  " show git changes to files in gutter
Plug 'tpope/vim-commentary'  "comment-out by gc
Plug 'roxma/nvim-yarp'  " dependency of ncm2
Plug 'ncm2/ncm2'  " awesome autocomplete plugin
Plug 'HansPinckaers/ncm2-jedi'  " fast python completion (use ncm2 if you want type info or snippet support)
Plug 'ncm2/ncm2-bufword'  " buffer keyword completion
Plug 'ncm2/ncm2-path'  " filepath completion

call plug#end()

" path to your python 
let g:python3_host_prog = '/usr/bin/python3'
let g:python_host_prog = '/usr/bin/python2'

filetype indent on

set fileformat=unix
set shortmess+=c

set mouse=a  " change cursor per mode
set number  " always show current line number
set smattcase  " better case-sensitivity when searching
set wrapscan  " begin search from top of file when nothing is found anymore

set expandtab
set tabstop=4
set shiftwidth=4
set fillchars+=vert:\  " remove chars from seperators
set softtabstop=4

set history=1000  " remember more commands and search history

set nobackup  " no backup or swap file, live dangerously
set noswapfile  " swap files give annoying warning

set breakindent  " preserve horizontal whitespace when wrapping
set showbreak=..
set lbr  " wrap words
set nowrap  " i turn on wrap manually when needed

set scrolloff=3 " keep three lines between the cursor and the edge of the screen

set undodir=~/.vim/undodir
set undofile  " save undos
set undolevels=10000  " maximum number of changes that can be undone
set undoreload=100000  " maximum number lines to save for undo on a buffer reload

set noshowmode  " keep command line clean
set noshowcmd

set laststatus=2  " always slow statusline

set splitright  " i prefer splitting right and below
set splitbelow

set hlsearch  " highlight search and search while typing
set incsearch
set cpoptions+=x  " stay at seach item when <esc>

set noerrorbells  " remove bells (i think this is default in neovim)
set visualbell
set t_vb=
set relativenumber
set viminfo='20,<1000  " allow copying of more than 50 lines to other applications

" easy split movement
nnoremap <C-h> <C-w>h
nnoremap <C-j> <C-w>j
nnoremap <C-k> <C-w>k
nnoremap <C-l> <C-w>l

" tabs:
nnoremap tn :tabnew<Space>
nnoremap tk :tabnext<CR>
nnoremap tj :tabprev<CR>
nnoremap th :tabfirst<CR>
nnoremap tl :tablast<CR>

" colorscheme options
let g:lucius_style="light"
let g:lucius_contrast="low"
colo lucius
set background=light

" mapping Esc
imap <F13> <Esc>
cnoremap <Esc> <C-c>
inoremap <c-c> <ESC>
nnoremap <C-z> <Esc>  " disable terminal ctrl-z

" map S to replace current word with pasteboard
nnoremap S diw"0P
nnoremap cc "_cc
nnoremap q: :q<CR>
nnoremap w: :w<CR>

" map paste, yank and delete to named register so the content
" will not be overwritten (I know I should just remember...)
nnoremap x "_x
vnoremap x "_x

set clipboard=unnamedplus

" toggle nerdtree on ctrl+n
map <C-n> :NERDTreeToggle<CR>
map <C-t> :set nosplitright<CR>:TagbarToggle<CR>:set splitright<CR>

" ncm2 settings
autocmd BufEnter * call ncm2#enable_for_buffer()
set completeopt=menuone,noselect,noinsert
" make it FAST
let ncm2#popup_delay = 5
let ncm2#complete_length = [[1,1]]
let g:ncm2#matcher = 'substrfuzzy'

set pumheight=5

inoremap <expr> <Tab> pumvisible() ? "\<C-n>" : "\<Tab>"
inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"
inoremap <silent> <expr> <CR> (pumvisible() && empty(v:completed_item)) ?  "\<c-y>\<cr>" : "\<CR>"

let g:airline_powerline_fonts = 1
let g:airline_section_y = ""
let g:airline#extensions#tabline#enabled = 1
 
" Airline settings
" do not show error/warning section
let g:airline_section_error = ""
let g:airline_section_warning = ""

if !exists('g:airline_symbols')
    let g:airline_symbols = {}
endif

" theicfire .vimrc tips
" With a map leader it's possible to do extra key combinations
" like <leader>w saves the current file
let mapleader = " " " Leader is the space key
let g:mapleader = " "
let maplocalleader = "`"
let g:maplocalleader = "`"
nnoremap <SPACE> <Nop>

"auto indent for brackets
nmap <leader>w :w!<cr>
nmap <leader>q :lcl<cr>:q<cr>
nnoremap <leader>h :nohlsearch<Bar>:echo<CR>

" FlyGrep settings
nnoremap <leader>s :FlyGrep<cr>

" easy breakpoint python
au FileType python map <silent> <leader>b ofrom pudb import set_trace; set_trace()<esc>
au FileType python map <silent> <leader>B Ofrom pudb import set_trace; set_trace()<esc>
au FileType python map <silent> <leader>j ofrom pdb import set_trace; set_trace()<esc>
au FileType python map <silent> <leader>J Ofrom pdb import set_trace; set_trace()<esc>

" ale options
let g:ale_python_flake8_options = '--ignore=E129,E501,E302,E265,E241,E305,E402,W503'
let g:ale_python_pylint_options = '-j 0 --max-line-length=120'
let g:ale_list_window_size = 4
let g:ale_sign_column_always = 0
let g:ale_open_list = 1
let g:ale_keep_list_window_open = '1'

" Options are in .pylintrc!
highlight VertSplit ctermbg=253

let g:ale_sign_error = '‼'
let g:ale_sign_warning = '∙'
let g:ale_lint_on_text_changed = 'never'
let g:ale_lint_on_enter = '0'
let g:ale_lint_on_save = '1'
nmap <silent> <C-M> <Plug>(ale_previous_wrap)
nmap <silent> <C-m> <Plug>(ale_next_wrap)

" mapping to make movements operate on 1 screen line in wrap mode
function! ScreenMovement(movement)
   if &wrap
      return "g" . a:movement
   else
      return a:movement
   endif
endfunction

onoremap <silent> <expr> j ScreenMovement("j")
onoremap <silent> <expr> k ScreenMovement("k")
onoremap <silent> <expr> 0 ScreenMovement("0")
onoremap <silent> <expr> ^ ScreenMovement("^")
onoremap <silent> <expr> $ ScreenMovement("$")
nnoremap <silent> <expr> j ScreenMovement("j")
nnoremap <silent> <expr> k ScreenMovement("k")
nnoremap <silent> <expr> 0 ScreenMovement("0")
nnoremap <silent> <expr> ^ ScreenMovement("^")
nnoremap <silent> <expr> $ ScreenMovement("$")

" highlight python and self function
autocmd BufEnter * syntax match Type /\v\.[a-zA-Z0-9_]+\ze(\[|\s|$|,|\]|\)|\.|:)/hs=s+1
autocmd BufEnter * syntax match pythonFunction /\v[[:alnum:]_]+\ze(\s?\()/
hi def link pythonFunction Function
autocmd BufEnter * syn match Self "\(\W\|^\)\@<=self\(\.\)\@="
highlight self ctermfg=239

" jedi options
let g:jedi#auto_initialization = 1
let g:jedi#completions_enabled = 0
let g:jedi#auto_vim_configuration = 0
let g:jedi#smart_auto_mappings = 0
let g:jedi#popup_on_dot = 0
let g:jedi#completions_command = ""
let g:jedi#show_call_signatures = "1"
let g:jedi#show_call_signatures_delay = 0
let g:jedi#use_tabs_not_buffers = 0
let g:jedi#show_call_signatures_modes = 'i'  " ni = also in normal mode
let g:jedi#enable_speed_debugging=0

" Impsort option
hi pythonImportedObject ctermfg=127
hi pythonImportedFuncDef ctermfg=127
hi pythonImportedClassDef ctermfg=127

" Remove all trailing whitespace by pressing C-S
nnoremap <C-S> :let _s=@/<Bar>:%s/\s\+$//e<Bar>:let @/=_s<Bar><CR>
autocmd BufReadPost quickfix nnoremap <buffer> <CR> <CR>

" move between defs python:
# NOTE: this break shortcuts with []
nnoremap [[ [m
nnoremap ]] ]m

nnoremap <silent><nowait> [ [[
nnoremap <silent><nowait> ] ]]

function! MakeBracketMaps()
    nnoremap <silent><nowait><buffer> [ :<c-u>exe 'normal '.v:count.'[m'<cr>
    nnoremap <silent><nowait><buffer> ] :<c-u>exe 'normal '.v:count.']m'<cr>
endfunction

augroup bracketmaps
    autocmd!
    autocmd FileType python call MakeBracketMaps()
augroup END

" neovim options
au BufEnter * if &buftype == 'terminal' | :startinsert | endif
nnoremap <C-a> <Esc>
nnoremap <C-x> <Esc>

" vimgutter options
let g:gitgutter_override_sign_column_highlight = 0
let g:gitgutter_map_keys = 0
 
" ctrl p options
let g:ctrlp_custom_ignore = '\v\.(npy|jpg|pyc|so|dll)$'
let g:ctrlp_user_command = ['.git', 'cd %s && git ls-files -co --exclude-standard']

There is a typo smattcase on line 38!