Почему этот простой код Urwid hello world терпит неудачу?

У меня есть очень простая программа, которая использует Urwid для текстовых интерфейсов:

import urwid


title = urwid.Text('Test')

pile = urwid.Pile([
    title,
])

body = urwid.Frame(pile)

urwid.MainLoop(body).run()

Однако, когда я запускаю его, я получаю сообщение об ошибке:

/home/user/anaconda3/envs/torch-env/bin/python /home/user/Work/market-maker/test.py
Traceback (most recent call last):
  File "/home/user/Work/market-maker/test.py", line 97, in <module>
    urwid.MainLoop(body).run()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 287, in run
    self._run()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 385, in _run
    self.event_loop.run()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 790, in run
    self._loop()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 818, in _loop
    self._entering_idle()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 779, in _entering_idle
    callback()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 574, in entering_idle
    self.draw_screen()
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/main_loop.py", line 588, in draw_screen
    canvas = self._topmost_widget.render(self.screen_size, focus=True)
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/widget.py", line 145, in cached_render
    canv = fn(self, size, focus=focus)
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/container.py", line 1089, in render
    body = self.body.render((maxcol, maxrow-ftrim-htrim),
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/widget.py", line 145, in cached_render
    canv = fn(self, size, focus=focus)
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/container.py", line 1565, in render
    canv = w.render((maxcol, rows), focus=focus and item_focus)
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/widget.py", line 145, in cached_render
    canv = fn(self, size, focus=focus)
  File "/home/user/anaconda3/envs/torch-env/lib/python3.8/site-packages/urwid/widget.py", line 1001, in render
    (maxcol,) = size
ValueError: too many values to unpack (expected 1)

Process finished with exit code 1

Почему это? Что мне не хватает?


python-3.x python tui urwid
person Edy Bourne    schedule 10.04.2021    source источник

Ответы (1)


arrow_upward
2
arrow_downward

Мне удалось заставить его работать, поместив его внутрь объекта Filler

import urwid
title = urwid.Text('Test')
pile = urwid.Pile([
    title
])
body = urwid.Filler(pile)
loop = urwid.MainLoop(body)
loop.run()
person SequenceToSequence    schedule 10.04.2021