Update prompt-toolkit to 3.0.17

[pyup-bot]

This PR updates prompt-toolkit from 3.0.7 to 3.0.17.

Changelog

3.0.17

------------------

New features:
- Accept `style` parameter in `print_container` utility.
- On Windows, handle Control-Delete.

Fixes:
- Avoid leaking file descriptors in SSH server.

3.0.16

------------------

New features:
- Added `ScrollablePane`: a scrollable layout container.
This allows applications to build a layout, larger than the terminal, with a
vertical scroll bar. The vertical scrolling will be done automatically when
certain widgets receive the focus.
- Added `DeduplicateCompleter and `ConditionalCompleter`.
- Added `deduplicate` argument to `merge_completers`.

3.0.15

------------------

Fixes:
- Set stdout blocking when writing in vt100 output. Fixes an issue when uvloop
is used and big amounts of text are written.
- Guarantee height of at least 1 for both labels and text areas.
- In the `Window` rendering, take `dont_extend_width`/`dont_extend_height` into
account. This fixes issues where one window is enlarged unexpectedly because
it's bundled with another window in a `HSplit`/`VSplit`, but with different
width/height.
- Don't handle `SIGWINCH` in progress bar anymore. (The UI runs in another
thread, and we have terminal size polling now).
- Fix several thread safety issues and a race condition in the progress bar.
- Fix thread safety issues in `Application.invalidate()`. (Fixes a
`RuntimeError` in some situations when using progress bars.)
- Fix handling of mouse events on Windows if we have a Windows 10 console with
ANSI support.
- Disable `QUICK_EDIT_MODE` on Windows 10 when mouse support is requested.

3.0.14

------------------

New features:
- Disable bell when `PROMPT_TOOLKIT_BELL=false` environment variable has been
set.

Fixes:
- Improve cancellation of history loading.

3.0.13

------------------

Fixes:
- Again, fixed the race condition in `ThreadedHistory`. Previous fix was not
correct.

3.0.12

------------------

Fixes:
- Fixed a race condition in `ThreadedHistory` that happens when continuously
pasting input text (which would continously repopulate the history).
- Move cursor key mode resetting (for vt100 terminals) to the renderer. (Mostly
cleanup).

3.0.11

------------------

New features:
- Poll terminal size: better handle resize events when the application runs in
a thread other than the main thread (where handling SIGWINCH doesn't work) or
in the Windows console.

Fixes:
- Fix bug in system toolbar. The execution of system commands was broken.
- A refactoring of patch_stdout that includes several fixes.
* We know look at the `AppSession` in order to see which application is
 running, rather then looking at the event loop which is installed when
 `StdoutProxy` is created. This way, `patch_stdout` will work when
 prompt_toolkit applications with a different event loop run.
* Fix printing when no application/event loop is running.
* Fixed the `raw` argument of `PatchStdout`.
- A refactoring of the `ThreadedHistory`, which includes several fixes, in
particular a race condition (see issue 1158) that happened when editing
input while a big history was still being loaded in the background.

3.0.10

------------------

New features:
- Improved `WordCompleter`: accept `display_dict`. Also accept formatted text
for both `display_dict` and `meta_dict`.
- Allow customization of button arrows.

Fixes:
- Correctly recognize backtab on Windows.
- Show original display text in fuzzy completer if no filtering was done.

3.0.9

-----------------

New features:
- Handle c-tab for TERM=linux.

Fixes:
- Improve rendering speed of `print_formatted_text`. (Don't render styling
attributes to output between fragments that have identical styling.)
- Gracefully handle `FileHistory` decoding errors.
- Prevent asyncio deprecation warnings.

3.0.8

-----------------

New features:
- Added `validator` parameter to `input_dialog`.

Fixes:
- Cope with stdout not having a working `fileno`.
- Handle situation when /dev/null is piped into stdin, or when stdin is closed
somehow.
- Fix for telnet/ssh server: `isatty` method was not implemented.
- Display correct error when a tuple is passed into `to_formatted_text`.
- Pass along WORD parameter in `Document._is_word_before_cursor_complete`.
Fixes some key bindings.
- Expose `ProgressBarCounter` in shortcuts module.

Links

• PyPI: https://pypi.org/project/prompt-toolkit
• Changelog: https://pyup.io/changelogs/prompt-toolkit/
• Repo: https://github.com/prompt-toolkit/python-prompt-toolkit

[pyup-bot]

Closing this in favor of #1642