vimscript function to format a string that describes a date ('now', 'in 2 days 2pm', 'next week'), using pythons `dateparser` module

ParseDate.vim

" vimscript function takes input string `inp`, hands it to python function `parse` (module `dateparser`), 
" and outputs the parsed date in format `fmt`; return `inp` if string could not be parsed to valid date
" Example: 
" :echo ParseDate('tomorrow', '%Y %m %d')
function! ParseDate(inp, fmt)
  python << endpython
  import vim, dateparser as dp
  inp = vim.eval('a:inp')
  fmt = vim.eval('a:fmt')
  inp_parsed = dp.parse(inp, languages=['en','de'], 
                        settings={'PREFER_DATES_FROM': 'future'})
  out = inp
  if type(inp_parsed).__name__ == 'datetime':
    out = inp_parsed.strftime(fmt)
  vim.command("let s:ans = '%s'" % out)
  endpython
  return s:ans
endfunction