* Initial migration to the python 3.7: Semi-automatic changes
CI related:
Update `tox.ini` and `.travis.yml` to run python3 only tests
Python 3.11 tests is commented-out on travis until #517 is not merged
Manual changes:
* `setup.py`: classifiers, remove python2 compatibility code
* `docs/manual/wcur2.py`: looks like file was never completed, syntax is invalid
* `urwid.compat`: removed `ord2`, `bytes3`, `text_type`, `xrange` and `text_types`
Automatic changes (no manual editing, AST validated equality:
* removed `u` prefix from all strings: not allowed in modern python code
* `bytes()` -> `b''`
* `== None` -> `is None`
* subclassing of `object`
* `super(<Class>`, self>)` ->`super()`
* `from __future__ import ...` python3 compatibility imports
* `set(<Iterable[Hashable]>)` -> `{<Hashable>}`
* partial f-strings conversion
* (`IOError`, `select.error`, `socket.error`) -> `OSError`
* Switch to f-strings (automatic changes)
* Remove `urwid.compat.B`
* Remove `urwid.compat.with_metaclass`
* use native `super()` instead of `self.__super`
* Remove `urwid.compat.chr2`
* Remove `urwid.split_repr.python3_repr`
* Use native `@classmethod` and `@property` where overload is not possible
* Add `from __future__ import annotations`
* automatically sort imports
* Add DeprecationWarning to the deprecated methods
most IDE's will recognize it and annotate during new code usage
call with "warnings as errors" mode will help to refactor other users
* Address comments
* replace homepage address in all files
* remove outdated comments in compat.py
* make wcur2.py correct python code. For example subclass
* replace `self.__super` by `super()` in examples
* fix asyncio_socket_server.py: magic with `asyncio` became wrong
* Remove `widget.update_wrapper`: this was backport of python `functools.update_wrapper`
* display_common.py: fix trivial typo in _colors calculation
* use `sorted` method instead of list construction with later sorting
* Address comments
* `wcur2` include in docs
* warning on `signals.Signals.emit`
---------
Co-authored-by: Aleksei Stepanov <alekseis@nvidia.com>
"will be have" → "will have"
fix small typo in tutorial
--HG-- rename : docs/tutorial/menu4.py => docs/tutorial/adventure.py rename : docs/tutorial/menu4.py.xdotool => docs/tutorial/adventure.py.xdotool rename : docs/tutorial/menu41.png => docs/tutorial/adventure1.png rename : docs/tutorial/menu42.png => docs/tutorial/adventure2.png rename : docs/tutorial/menu43.png => docs/tutorial/adventure3.png rename : docs/tutorial/menu44.png => docs/tutorial/adventure4.png rename : docs/tutorial/menu2.py => docs/tutorial/cmenu.py rename : docs/tutorial/menu2.py.xdotool => docs/tutorial/cmenu.py.xdotool rename : docs/tutorial/menu21.png => docs/tutorial/cmenu1.png rename : docs/tutorial/menu22.png => docs/tutorial/cmenu2.png rename : docs/tutorial/menu23.png => docs/tutorial/cmenu3.png rename : docs/tutorial/menu24.png => docs/tutorial/cmenu4.png rename : docs/tutorial/menu3.py => docs/tutorial/hmenu.py rename : docs/tutorial/menu3.py.xdotool => docs/tutorial/hmenu.py.xdotool rename : docs/tutorial/menu31.png => docs/tutorial/hmenu1.png rename : docs/tutorial/menu32.png => docs/tutorial/hmenu2.png rename : docs/tutorial/menu33.png => docs/tutorial/hmenu3.png rename : docs/tutorial/menu34.png => docs/tutorial/hmenu4.png rename : docs/tutorial/lbcont.py => docs/tutorial/multiple.py rename : docs/tutorial/lbcont.py.xdotool => docs/tutorial/multiple.py.xdotool rename : docs/tutorial/lbcont1.png => docs/tutorial/multiple1.png rename : docs/tutorial/lbcont2.png => docs/tutorial/multiple2.png rename : docs/tutorial/lbcont3.png => docs/tutorial/multiple3.png rename : docs/tutorial/lbcont4.png => docs/tutorial/multiple4.png rename : docs/tutorial/edit.py => docs/tutorial/qa.py rename : docs/tutorial/edit.py.xdotool => docs/tutorial/qa.py.xdotool rename : docs/tutorial/edit1.png => docs/tutorial/qa1.png rename : docs/tutorial/edit2.png => docs/tutorial/qa2.png rename : docs/tutorial/edit3.png => docs/tutorial/qa3.png rename : docs/tutorial/frlb.py => docs/tutorial/sig.py rename : docs/tutorial/frlb.py.xdotool => docs/tutorial/sig.py.xdotool rename : docs/tutorial/frlb1.png => docs/tutorial/sig1.png rename : docs/tutorial/frlb2.png => docs/tutorial/sig2.png rename : docs/tutorial/frlb3.png => docs/tutorial/sig3.png rename : docs/tutorial/frlb4.png => docs/tutorial/sig4.png rename : docs/tutorial/menu1.py => docs/tutorial/smenu.py rename : docs/tutorial/menu1.py.xdotool => docs/tutorial/smenu.py.xdotool rename : docs/tutorial/menu11.png => docs/tutorial/smenu1.png rename : docs/tutorial/menu12.png => docs/tutorial/smenu2.png rename : docs/tutorial/menu13.png => docs/tutorial/smenu3.png
--HG-- branch : feature-sphinx