[urwid] Keep column packed when content length changes.

[Thomas Schüßler]

How can I keep a column packed when its content changes?

The text in the left column in my example wraps when it's content grows
in length.

https://gist.github.com/vindolin/e309dab11cd13d632ddb


import urwid

class MyEdit(urwid.Edit):
def keypress(self, size, key):
if key == 'enter':
return True

urwid.Edit.keypress(self, size, key)

edit = MyEdit(edit_text='Press ENTER to see my problem!')

left = urwid.Text('left left left')
right = urwid.Text('right right right')

header = urwid.Columns([
('pack', urwid.AttrMap(left, 'left')),
urwid.AttrMap(edit, 'center'),
('pack', urwid.AttrMap(right, 'right')),
], dividechars=1)

frame = urwid.Frame(body=urwid.ListBox([]), header=header)


def unhandled_input(input_):
left.set_text('This does not fit into the left column :(, how can I
keep it packed?')

palette = [
('left', '', '', '', '', '#600'),
('center', '', '', '', '', '#006'),
('right', '', '', '', '', '#060'),
]

frame.set_focus('header')
loop = urwid.MainLoop(frame, palette, unhandled_input=unhandled_input)
loop.screen.set_terminal_properties(colors=256)
loop.run()