v0.26 bugs in Windows

[darikg]

In python 2.7: Need to press meta+enter to execute a line even when multiline mode is off

In python 3.3: Fails with traceback:

raceback (most recent call last):
  File "C:\Users\dg\Anaconda3\envs\ppt3\Scripts\ptpython-script.py", line 9, in <module>
    load_entry_point('prompt-toolkit==0.25', 'console_scripts', 'ptpython')()
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\entry_points\ptpython.py", line 77, in run

    startup_paths=startup_paths, always_multiline=always_multiline)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\repl.py", line 189, in embed
    cli.start_repl(startup_paths=startup_paths)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\contrib\repl.py", line 48, in start_repl
    on_exit=AbortAction.RAISE_EXCEPTION)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 251, in read_input
    next(g)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 301, in _read_input
    self._redraw()
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\__init__.py", line 191, in _redraw
    self.renderer.render(self)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 465, in render
    style=self._style, grayed=cli.is_aborting,
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 345, in output_screen_diff
    current_pos = move_cursor(screen.get_cursor_position())
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\renderer.py", line 232, in move_cursor
    output.cursor_up(current_y - new.y)
  File "c:\users\dg\documents\python\python-prompt-toolkit\prompt_toolkit\terminal\win32_output.py", line 166, in cursor_up
    sr = self._screen_buffer_info().dwCursorPosition
AttributeError: 'NoneType' object has no attribute 'dwCursorPosition'

[jonathanslenders]

Thanks for reporting! I have no immediate idea what's going on, but I'll have a look at this as soon as possible.

[jonathanslenders]

Hi, I was just trying on Windows, but with Python 3.4 I can't reproduce it.
It seems that the windll.kernel32.GetConsoleScreenBufferInfo API call fails.

[darikg]

If it helps, I can confirm there's two different issues with python 3.3 and 3.4. In 3.3 I get the error message I listed above, and in 3.4, I get simply "failed to create process." printed to console.

[darikg]

Oddly enough, even though ptpython fails in 3.3, ptipython works (Although it still needs control-enter to execute a line). With 3.4, both ptpython and ptipython print 'failed to create process'

[darikg]

If you want to hear something completely bananas, ptpython in python 3.3 works if you set prompt_toolkit.terminal.win32_input._DEBUG_RENDER_OUTPUT to True

[darikg]

Mapping \x0d to Keys.ControlJ instead of ControlM fixes the new line issue

[jonathanslenders]

Okay, that sounds like there are a couple of bugs. Thanks for keeping me up to date. I haven't been able to fix anything lately, but I hope to restart prompt-toolkit development very soon again.

[darikg]

Totally wasn't my intention to try to rush you or anything!! I'm just having fun poking around blindly and keeping notes here

[jonathanslenders]

Hi @darikg,

Can we close this issue? Windows development progressed a lot, but I'm not sure whether this still happens or not.

[darikg]

Yeah close it!

On Wed, Jul 15, 2015 at 7:24 AM, Jonathan Slenders <notifications@github.com

wrote:

Hi @darikg https://github.com/darikg,

Can we close this issue? Windows development progressed a lot, but I'm not
sure whether this still happens or not.

—
Reply to this email directly or view it on GitHub
#86 (comment)
.

[itsnotvalid]

Same bug for win64 (windows 8.1) python2.7 prompt_toolkit-0.45 when using mycli-1.2.

Traceback (most recent call last):
  File "C:\Python27\Scripts\mycli-script.py", line 9, in <module>
    load_entry_point('mycli==1.2.0', 'console_scripts', 'mycli')()
  File "C:\Python27\lib\site-packages\click\core.py", line 664, in __call__
    return self.main(*args, **kwargs)
  File "C:\Python27\lib\site-packages\click\core.py", line 644, in main
    rv = self.invoke(ctx)
  File "C:\Python27\lib\site-packages\click\core.py", line 837, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "C:\Python27\lib\site-packages\click\core.py", line 464, in invoke
    return callback(*args, **kwargs)
  File "C:\Python27\lib\site-packages\mycli\main.py", line 550, in cli
    mycli.run_cli()
  File "C:\Python27\lib\site-packages\mycli\main.py", line 311, in run_cli
    document = cli.run()
  File "C:\Python27\lib\site-packages\prompt_toolkit\interface.py", line 272, in
 run
    self._redraw()
  File "C:\Python27\lib\site-packages\prompt_toolkit\interface.py", line 244, in
 _redraw
    is_done=self.is_done)
  File "C:\Python27\lib\site-packages\prompt_toolkit\renderer.py", line 339, in
render
    style=style,
  File "C:\Python27\lib\site-packages\prompt_toolkit\renderer.py", line 159, in
output_screen_diff
    current_pos = move_cursor(Point(y=y, x=c))
  File "C:\Python27\lib\site-packages\prompt_toolkit\renderer.py", line 76, in m
ove_cursor
    _output_cursor_forward(new.x)
  File "C:\Python27\lib\site-packages\prompt_toolkit\terminal\win32_output.py",
line 187, in cursor_forward
    sr = self._screen_buffer_info().dwCursorPosition
AttributeError: 'NoneType' object has no attribute 'dwCursorPosition'