diff --git a/ftplugin/python.vim b/ftplugin/python.vim
index 88b24d2..29881ef 100644
--- a/ftplugin/python.vim
+++ b/ftplugin/python.vim
@@ -32,11 +32,11 @@ function! ChangePythonLineLength() abort
     let &l:colorcolumn = l:line_length + 1
 endfunction
 
-call ChangePythonLineLength()
+" call ChangePythonLineLength()
 
 let b:ale_linters = ['flake8']
 let b:ale_fixers = [
-\   'remove_trailing_lines',
+\   'black',
 \   'autopep8',
 \   'yapf',
 \]
@@ -63,3 +63,21 @@ if !empty(s:virtualenv)
         \   . ' ' . ale#Escape(ale#path#Dirname(s:virtualenv) . '/manage.py') . ' test'
     endif
 endif
+
+if !exists("g:python_debugger")
+    let g:python_debugger = 'ipdb'
+endif
+let g:python_debug_line = 'import ' . g:python_debugger . '; ' . g:python_debugger . '.set_trace()'
+
+function! InsertBreakpoint() abort
+    let l:curr_indent = indent(line("."))
+    let l:line = ''
+    while l:curr_indent > 0
+        let l:line .= ' '
+        let l:curr_indent -= 1
+    endwhile
+    let l:line = l:line . g:python_debug_line
+    :put =l:line
+endfunction
+
+nnoremap <leader>d :call InsertBreakpoint()<CR>