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GeezerVison is showing github.com — ptpython/src/ptpython/python_input.py at main · prompt-toolkit/ptpython Expand file tree/ Copy pathpython_input.pyMore file actions 1120 lines (986 loc) · 43.7 KB / Copy pathpython_input.pyFile metadata and controls1120 lines (986 loc) · 43.7 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 """ Application for reading Python input. This can be used for creation of Python REPLs. """ from __future__ import annotations from asyncio import get_running_loop from functools import partial from typing import TYPE_CHECKING, Any, Callable, Dict, Generic, Mapping, TypeVar, Union from prompt_toolkit.application import Application, get_app from prompt_toolkit.auto_suggest import ( AutoSuggestFromHistory, ConditionalAutoSuggest, ThreadedAutoSuggest, ) from prompt_toolkit.buffer import Buffer from prompt_toolkit.completion import ( Completer, ConditionalCompleter, DynamicCompleter, FuzzyCompleter, ThreadedCompleter, merge_completers, ) from prompt_toolkit.cursor_shapes import ( AnyCursorShapeConfig, CursorShape, DynamicCursorShapeConfig, ModalCursorShapeConfig, ) from prompt_toolkit.document import Document from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode from prompt_toolkit.filters import Condition, FilterOrBool from prompt_toolkit.formatted_text import AnyFormattedText from prompt_toolkit.history import ( FileHistory, History, InMemoryHistory, ThreadedHistory, ) from prompt_toolkit.input import Input from prompt_toolkit.key_binding import ( ConditionalKeyBindings, KeyBindings, merge_key_bindings, ) from prompt_toolkit.key_binding.bindings.auto_suggest import load_auto_suggest_bindings from prompt_toolkit.key_binding.bindings.open_in_editor import ( load_open_in_editor_bindings, ) from prompt_toolkit.key_binding.key_bindings import Binding, KeyHandlerCallable from prompt_toolkit.key_binding.key_processor import KeyPressEvent from prompt_toolkit.key_binding.vi_state import InputMode from prompt_toolkit.keys import Keys from prompt_toolkit.layout.containers import AnyContainer from prompt_toolkit.layout.dimension import AnyDimension from prompt_toolkit.layout.processors import Processor from prompt_toolkit.lexers import DynamicLexer, Lexer, SimpleLexer from prompt_toolkit.output import ColorDepth, Output from prompt_toolkit.styles import ( AdjustBrightnessStyleTransformation, BaseStyle, ConditionalStyleTransformation, DynamicStyle, SwapLightAndDarkStyleTransformation, merge_style_transformations, ) from prompt_toolkit.utils import is_windows from prompt_toolkit.validation import ConditionalValidator, Validator from .completer import CompletePrivateAttributes, HidePrivateCompleter, PythonCompleter from .history_browser import PythonHistory from .key_bindings import ( load_confirm_exit_bindings, load_python_bindings, load_sidebar_bindings, ) from .layout import CompletionVisualisation, PtPythonLayout from .lexer import PtpythonLexer from .prompt_style import ClassicPrompt, IPythonPrompt, PromptStyle from .signatures import Signature, get_signatures_using_eval, get_signatures_using_jedi from .style import generate_style, get_all_code_styles, get_all_ui_styles from .utils import unindent_code from .validator import PythonValidator # Isort introduces a SyntaxError, if we'd write `import __future__`. # https://github.com/PyCQA/isort/issues/2100 __future__ = __import__("__future__") __all__ = ["PythonInput"] if TYPE_CHECKING: from typing_extensions import Protocol class _SupportsLessThan(Protocol): # Taken from typeshed. _T_lt is used by "sorted", which needs anything # sortable. def __lt__(self, __other: Any) -> bool: ... _T_lt = TypeVar("_T_lt", bound="_SupportsLessThan") _T_kh = TypeVar("_T_kh", bound=Union[KeyHandlerCallable, Binding]) class OptionCategory(Generic[_T_lt]): def __init__(self, title: str, options: list[Option[_T_lt]]) -> None: self.title = title self.options = options class Option(Generic[_T_lt]): """ Ptpython configuration option that can be shown and modified from the sidebar. :param title: Text. :param description: Text. :param get_values: Callable that returns a dictionary mapping the possible values to callbacks that activate these value. :param get_current_value: Callable that returns the current, active value. """ def __init__( self, title: str, description: str, get_current_value: Callable[[], _T_lt], # We accept `object` as return type for the select functions, because # often they return an unused boolean. Maybe this can be improved. get_values: Callable[[], Mapping[_T_lt, Callable[[], object]]], ) -> None: self.title = title self.description = description self.get_current_value = get_current_value self.get_values = get_values @property def values(self) -> Mapping[_T_lt, Callable[[], object]]: return self.get_values() def activate_next(self, _previous: bool = False) -> None: """ Activate next value. """ current = self.get_current_value() options = sorted(self.values.keys()) # Get current index. try: index = options.index(current) except ValueError: index = 0 # Go to previous/next index. if _previous: index -= 1 else: index += 1 # Call handler for this option. next_option = options[index % len(options)] self.values[next_option]() def activate_previous(self) -> None: """ Activate previous value. """ self.activate_next(_previous=True) COLOR_DEPTHS = { ColorDepth.DEPTH_1_BIT: "Monochrome", ColorDepth.DEPTH_4_BIT: "ANSI Colors", ColorDepth.DEPTH_8_BIT: "256 colors", ColorDepth.DEPTH_24_BIT: "True color", } _Namespace = Dict[str, Any] _GetNamespace = Callable[[], _Namespace] class PythonInput: """ Prompt for reading Python input. :: python_input = PythonInput(...) python_code = python_input.app.run() :param create_app: When `False`, don't create and manage a prompt_toolkit application. The default is `True` and should only be set to false if PythonInput is being embedded in a separate prompt_toolkit application. """ def __init__( self, get_globals: _GetNamespace | None = None, get_locals: _GetNamespace | None = None, history_filename: str | None = None, vi_mode: bool = False, color_depth: ColorDepth | None = None, # Input/output. input: Input | None = None, output: Output | None = None, # For internal use. extra_key_bindings: KeyBindings | None = None, create_app: bool = True, _completer: Completer | None = None, _validator: Validator | None = None, _lexer: Lexer | None = None, _extra_buffer_processors: list[Processor] | None = None, _extra_layout_body: AnyContainer | None = None, _extra_toolbars: list[AnyContainer] | None = None, _input_buffer_height: AnyDimension | None = None, ) -> None: self.get_globals: _GetNamespace = get_globals or (lambda: {}) self.get_locals: _GetNamespace = get_locals or self.get_globals self.completer = _completer or PythonCompleter( self.get_globals, self.get_locals, lambda: self.enable_dictionary_completion, ) self._completer = HidePrivateCompleter( # If fuzzy is enabled, first do fuzzy completion, but always add # the non-fuzzy completions, if somehow the fuzzy completer didn't # find them. (Due to the way the cursor position is moved in the # fuzzy completer, some completions will not always be found by the # fuzzy completer, but will be found with the normal completer.) merge_completers( [ ConditionalCompleter( FuzzyCompleter(DynamicCompleter(lambda: self.completer)), Condition(lambda: self.enable_fuzzy_completion), ), DynamicCompleter(lambda: self.completer), ], deduplicate=True, ), lambda: self.complete_private_attributes, ) self._validator = _validator or PythonValidator(self.get_compiler_flags) self._lexer = PtpythonLexer(_lexer) self.history: History if history_filename: self.history = ThreadedHistory(FileHistory(history_filename)) else: self.history = InMemoryHistory() self._input_buffer_height = _input_buffer_height self._extra_layout_body = _extra_layout_body self._extra_toolbars = _extra_toolbars or [] self._extra_buffer_processors = _extra_buffer_processors or [] self.extra_key_bindings = extra_key_bindings or KeyBindings() # Settings. self.title: AnyFormattedText = "" self.show_signature: bool = False self.show_docstring: bool = False self.show_meta_enter_message: bool = True self.completion_visualisation: CompletionVisualisation = ( CompletionVisualisation.MULTI_COLUMN ) self.completion_menu_scroll_offset: int = 1 self.show_line_numbers: bool = False self.show_status_bar: bool = True self.wrap_lines: bool = True self.complete_while_typing: bool = True self.paste_mode: bool = ( False # When True, don't insert whitespace after newline. ) self.confirm_exit: bool = ( True # Ask for confirmation when Control-D is pressed. ) self.accept_input_on_enter: int = 2 # Accept when pressing Enter 'n' times. # 'None' means that meta-enter is always required. self.enable_open_in_editor: bool = True self.enable_system_bindings: bool = True self.enable_input_validation: bool = True self.enable_auto_suggest: bool = False self.enable_mouse_support: bool = False self.enable_history_search: bool = False # When True, like readline, going # back in history will filter the # history on the records starting # with the current input. self.enable_syntax_highlighting: bool = True self.enable_fuzzy_completion: bool = False self.enable_dictionary_completion: bool = False # Also eval-based completion. self.complete_private_attributes: CompletePrivateAttributes = ( CompletePrivateAttributes.ALWAYS ) self.swap_light_and_dark: bool = False self.highlight_matching_parenthesis: bool = False self.show_sidebar: bool = False # Currently show the sidebar. # Pager. self.enable_output_formatting: bool = False self.enable_pager: bool = False # When the sidebar is visible, also show the help text. self.show_sidebar_help: bool = True # Currently show 'Do you really want to exit?' self.show_exit_confirmation: bool = False # The title to be displayed in the terminal. (None or string.) self.terminal_title: str | None = None self.exit_message: str = "Do you really want to exit?" self.insert_blank_line_after_output: bool = True # (For the REPL.) self.insert_blank_line_after_input: bool = False # (For the REPL.) # The buffers. self.default_buffer = self._create_buffer() self.search_buffer: Buffer = Buffer() self.docstring_buffer: Buffer = Buffer(read_only=True) # Cursor shapes. self.cursor_shape_config = "Block" self.all_cursor_shape_configs: dict[str, AnyCursorShapeConfig] = { "Block": CursorShape.BLOCK, "Underline": CursorShape.UNDERLINE, "Beam": CursorShape.BEAM, "Modal (vi)": ModalCursorShapeConfig(), "Blink block": CursorShape.BLINKING_BLOCK, "Blink under": CursorShape.BLINKING_UNDERLINE, "Blink beam": CursorShape.BLINKING_BEAM, } # Tokens to be shown at the prompt. self.prompt_style: str = "classic" # The currently active style. # Styles selectable from the menu. self.all_prompt_styles: dict[str, PromptStyle] = { "ipython": IPythonPrompt(self), "classic": ClassicPrompt(), } #: Load styles. self.code_styles: dict[str, BaseStyle] = get_all_code_styles() self.ui_styles = get_all_ui_styles() self._current_code_style_name: str = "default-ansi" self._current_ui_style_name: str = "default" if is_windows(): self._current_code_style_name = "win32" self._current_style = self._generate_style() self.color_depth: ColorDepth = color_depth or ColorDepth.default() self.max_brightness: float = 1.0 self.min_brightness: float = 0.0 # Options to be configurable from the sidebar. self.options = self._create_options() self.selected_option_index: int = 0 #: Incrementing integer counting the current statement. self.current_statement_index: int = 1 # Code signatures. (This is set asynchronously after a timeout.) self.signatures: list[Signature] = [] # Boolean indicating whether we have a signatures thread running. # (Never run more than one at the same time.) self._get_signatures_thread_running: bool = False # Get into Vi navigation mode at startup self.vi_start_in_navigation_mode: bool = False # Preserve last used Vi input mode between main loop iterations self.vi_keep_last_used_mode: bool = False self.style_transformation = merge_style_transformations( [ ConditionalStyleTransformation( SwapLightAndDarkStyleTransformation(), filter=Condition(lambda: self.swap_light_and_dark), ), AdjustBrightnessStyleTransformation( lambda: self.min_brightness, lambda: self.max_brightness ), ] ) self.ptpython_layout = PtPythonLayout( self, lexer=DynamicLexer( lambda: self._lexer if self.enable_syntax_highlighting else SimpleLexer() ), input_buffer_height=self._input_buffer_height, extra_buffer_processors=self._extra_buffer_processors, extra_body=self._extra_layout_body, extra_toolbars=self._extra_toolbars, ) # Create an app if requested. If not, the global get_app() is returned # for self.app via property getter. if create_app: self._app: Application[str] | None = self._create_application(input, output) # Setting vi_mode will not work unless the prompt_toolkit # application has been created. if vi_mode: self.app.editing_mode = EditingMode.VI else: self._app = None def get_input_prompt(self) -> AnyFormattedText: return self.all_prompt_styles[self.prompt_style].in_prompt() def get_output_prompt(self) -> AnyFormattedText: return self.all_prompt_styles[self.prompt_style].out_prompt() def _accept_handler(self, buff: Buffer) -> bool: app = get_app() app.exit(result=buff.text) app.pre_run_callables.append(buff.reset) return True # Keep text, we call 'reset' later on. @property def option_count(self) -> int: "Return the total amount of options. (In all categories together.)" return sum(len(category.options) for category in self.options) @property def selected_option(self) -> Option[Any]: "Return the currently selected option." i = 0 for category in self.options: for o in category.options: if i == self.selected_option_index: return o else: i += 1 raise ValueError("Nothing selected") def get_compiler_flags(self) -> int: """ Give the current compiler flags by looking for _Feature instances in the globals. """ flags = 0 for value in self.get_globals().values(): try: if isinstance(value, __future__._Feature): f = value.compiler_flag flags |= f except BaseException: # get_compiler_flags should never raise to not run into an # `Unhandled exception in event loop` # See: https://github.com/prompt-toolkit/ptpython/issues/351 # An exception can be raised when some objects in the globals # raise an exception in a custom `__getattribute__`. pass return flags def add_key_binding( self, *keys: Keys | str, filter: FilterOrBool = True, eager: FilterOrBool = False, is_global: FilterOrBool = False, save_before: Callable[[KeyPressEvent], bool] = (lambda e: True), record_in_macro: FilterOrBool = True, ) -> Callable[[_T_kh], _T_kh]: """ Shortcut for adding new key bindings. (Mostly useful for a config.py file, that receives a PythonInput/Repl instance as input.) All arguments are identical to prompt_toolkit's `KeyBindings.add`. :: @python_input.add_key_binding(Keys.ControlX, filter=...) def handler(event): ... """ return self.extra_key_bindings.add( *keys, filter=filter, eager=eager, is_global=is_global, save_before=save_before, record_in_macro=record_in_macro, ) def install_code_colorscheme(self, name: str, style: BaseStyle) -> None: """ Install a new code color scheme. """ self.code_styles[name] = style def use_code_colorscheme(self, name: str) -> None: """ Apply new colorscheme. (By name.) """ assert name in self.code_styles self._current_code_style_name = name self._current_style = self._generate_style() def install_ui_colorscheme(self, name: str, style: BaseStyle) -> None: """ Install a new UI color scheme. """ self.ui_styles[name] = style def use_ui_colorscheme(self, name: str) -> None: """ Apply new colorscheme. (By name.) """ assert name in self.ui_styles self._current_ui_style_name = name self._current_style = self._generate_style() def _use_color_depth(self, depth: ColorDepth) -> None: self.color_depth = depth def _set_min_brightness(self, value: float) -> None: self.min_brightness = value self.max_brightness = max(self.max_brightness, value) def _set_max_brightness(self, value: float) -> None: self.max_brightness = value self.min_brightness = min(self.min_brightness, value) def _generate_style(self) -> BaseStyle: """ Create new Style instance. (We don't want to do this on every key press, because each time the renderer receives a new style class, he will redraw everything.) """ return generate_style( self.code_styles[self._current_code_style_name], self.ui_styles[self._current_ui_style_name], ) def _create_options(self) -> list[OptionCategory[Any]]: """ Create a list of `Option` instances for the options sidebar. """ def enable(attribute: str, value: Any = True) -> bool: setattr(self, attribute, value) # Return `True`, to be able to chain this in the lambdas below. return True def disable(attribute: str) -> bool: setattr(self, attribute, False) return True def simple_option( title: str, description: str, field_name: str, values: tuple[str, str] = ("off", "on"), ) -> Option[str]: "Create Simple on/of option." def get_current_value() -> str: return values[bool(getattr(self, field_name))] def get_values() -> dict[str, Callable[[], bool]]: return { values[1]: lambda: enable(field_name), values[0]: lambda: disable(field_name), } return Option( title=title, description=description, get_values=get_values, get_current_value=get_current_value, ) brightness_values = [1.0 / 20 * value for value in range(0, 21)] return [ OptionCategory( "Input", [ Option( title="Editing mode", description="Vi or emacs key bindings.", get_current_value=lambda: ["Emacs", "Vi"][self.vi_mode], get_values=lambda: { "Emacs": lambda: disable("vi_mode"), "Vi": lambda: enable("vi_mode"), }, ), Option( title="Cursor shape", description="Change the cursor style, possibly according " "to the Vi input mode.", get_current_value=lambda: self.cursor_shape_config, get_values=lambda: { s: partial(enable, "cursor_shape_config", s) for s in self.all_cursor_shape_configs }, ), simple_option( title="Paste mode", description="When enabled, don't indent automatically.", field_name="paste_mode", ), Option( title="Complete while typing", description="Generate autocompletions automatically while typing. " 'Don\'t require pressing TAB. (Not compatible with "History search".)', get_current_value=lambda: ["off", "on"][ self.complete_while_typing ], get_values=lambda: { "on": lambda: enable("complete_while_typing") and disable("enable_history_search"), "off": lambda: disable("complete_while_typing"), }, ), Option( title="Complete private attrs", description="Show or hide private attributes in the completions. " "'If no public' means: show private attributes only if no public " "matches are found or if an underscore was typed.", get_current_value=lambda: { CompletePrivateAttributes.NEVER: "Never", CompletePrivateAttributes.ALWAYS: "Always", CompletePrivateAttributes.IF_NO_PUBLIC: "If no public", }[self.complete_private_attributes], get_values=lambda: { "Never": lambda: enable( "complete_private_attributes", CompletePrivateAttributes.NEVER, ), "Always": lambda: enable( "complete_private_attributes", CompletePrivateAttributes.ALWAYS, ), "If no public": lambda: enable( "complete_private_attributes", CompletePrivateAttributes.IF_NO_PUBLIC, ), }, ), Option( title="Enable fuzzy completion", description="Enable fuzzy completion.", get_current_value=lambda: ["off", "on"][ self.enable_fuzzy_completion ], get_values=lambda: { "on": lambda: enable("enable_fuzzy_completion"), "off": lambda: disable("enable_fuzzy_completion"), }, ), Option( title="Dictionary completion", description="Enable experimental dictionary/list completion.\n" 'WARNING: this does "eval" on fragments of\n' " your Python input and is\n" " potentially unsafe.", get_current_value=lambda: ["off", "on"][ self.enable_dictionary_completion ], get_values=lambda: { "on": lambda: enable("enable_dictionary_completion"), "off": lambda: disable("enable_dictionary_completion"), }, ), Option( title="History search", description="When pressing the up-arrow, filter the history on input starting " 'with the current text. (Not compatible with "Complete while typing".)', get_current_value=lambda: ["off", "on"][ self.enable_history_search ], get_values=lambda: { "on": lambda: enable("enable_history_search") and disable("complete_while_typing"), "off": lambda: disable("enable_history_search"), }, ), simple_option( title="Mouse support", description="Respond to mouse clicks and scrolling for positioning the cursor, " "selecting text and scrolling through windows.", field_name="enable_mouse_support", ), simple_option( title="Confirm on exit", description="Require confirmation when exiting.", field_name="confirm_exit", ), simple_option( title="Input validation", description="In case of syntax errors, move the cursor to the error " "instead of showing a traceback of a SyntaxError.", field_name="enable_input_validation", ), simple_option( title="Auto suggestion", description="Auto suggest inputs by looking at the history. " "Pressing right arrow or Ctrl-E will complete the entry.", field_name="enable_auto_suggest", ), Option( title="Accept input on enter", description="Amount of ENTER presses required to execute input when the cursor " "is at the end of the input. (Note that META+ENTER will always execute.)", get_current_value=lambda: str( self.accept_input_on_enter or "meta-enter" ), get_values=lambda: { "2": lambda: enable("accept_input_on_enter", 2), "3": lambda: enable("accept_input_on_enter", 3), "4": lambda: enable("accept_input_on_enter", 4), "meta-enter": lambda: enable("accept_input_on_enter", None), }, ), ], ), OptionCategory( "Display", [ Option( title="Completions", description="Visualisation to use for displaying the completions. (Multiple columns, one column, a toolbar or nothing.)", get_current_value=lambda: self.completion_visualisation.value, get_values=lambda: { CompletionVisualisation.NONE.value: lambda: enable( "completion_visualisation", CompletionVisualisation.NONE ), CompletionVisualisation.POP_UP.value: lambda: enable( "completion_visualisation", CompletionVisualisation.POP_UP, ), CompletionVisualisation.MULTI_COLUMN.value: lambda: enable( "completion_visualisation", CompletionVisualisation.MULTI_COLUMN, ), CompletionVisualisation.TOOLBAR.value: lambda: enable( "completion_visualisation", CompletionVisualisation.TOOLBAR, ), }, ), Option( title="Prompt", description="Visualisation of the prompt. ('>>>' or 'In [1]:')", get_current_value=lambda: self.prompt_style, get_values=lambda: { s: partial(enable, "prompt_style", s) for s in self.all_prompt_styles }, ), simple_option( title="Blank line after input", description="Insert a blank line after the input.", field_name="insert_blank_line_after_input", ), simple_option( title="Blank line after output", description="Insert a blank line after the output.", field_name="insert_blank_line_after_output", ), simple_option( title="Show signature", description="Display function signatures.", field_name="show_signature", ), simple_option( title="Show docstring", description="Display function docstrings.", field_name="show_docstring", ), simple_option( title="Show line numbers", description="Show line numbers when the input consists of multiple lines.", field_name="show_line_numbers", ), simple_option( title="Show Meta+Enter message", description="Show the [Meta+Enter] message when this key combination is required to execute commands. " + "(This is the case when a simple [Enter] key press will insert a newline.", field_name="show_meta_enter_message", ), simple_option( title="Wrap lines", description="Wrap lines instead of scrolling horizontally.", field_name="wrap_lines", ), simple_option( title="Show status bar", description="Show the status bar at the bottom of the terminal.", field_name="show_status_bar", ), simple_option( title="Show sidebar help", description="When the sidebar is visible, also show this help text.", field_name="show_sidebar_help", ), simple_option( title="Highlight parenthesis", description="Highlight matching parenthesis, when the cursor is on or right after one.", field_name="highlight_matching_parenthesis", ), simple_option( title="Reformat output (black)", description="Reformat outputs using Black, if possible (experimental).", field_name="enable_output_formatting", ), simple_option( title="Enable pager for output", description="Use a pager for displaying outputs that don't " "fit on the screen.", field_name="enable_pager", ), ], ), OptionCategory( "Colors", [ simple_option( title="Syntax highlighting", description="Use colors for syntax highlighting", field_name="enable_syntax_highlighting", ), simple_option( title="Swap light/dark colors", description="Swap light and dark colors.", field_name="swap_light_and_dark", ), Option( title="Code", description="Color scheme to use for the Python code.", get_current_value=lambda: self._current_code_style_name, get_values=lambda: { name: partial(self.use_code_colorscheme, name) for name in self.code_styles }, ), Option( title="User interface", description="Color scheme to use for the user interface.", get_current_value=lambda: self._current_ui_style_name, get_values=lambda: { name: partial(self.use_ui_colorscheme, name) for name in self.ui_styles }, ), Option( title="Color depth", description="Monochrome (1 bit), 16 ANSI colors (4 bit),\n256 colors (8 bit), or 24 bit.", get_current_value=lambda: COLOR_DEPTHS[self.color_depth], get_values=lambda: { name: partial(self._use_color_depth, depth) for depth, name in COLOR_DEPTHS.items() }, ), Option( title="Min brightness", description="Minimum brightness for the color scheme (default=0.0).", get_current_value=lambda: f"{self.min_brightness:.2f}", get_values=lambda: { f"{value:.2f}": partial(self._set_min_brightness, value) for value in brightness_values }, ), Option( title="Max brightness", description="Maximum brightness for the color scheme (default=1.0).", get_current_value=lambda: f"{self.max_brightness:.2f}", get_values=lambda: { f"{value:.2f}": partial(self._set_max_brightness, value) for value in brightness_values }, ), ], ), ] def _create_application( self, input: Input | None, output: Output | None ) -> Application[str]: """ Create an `Application` instance. """ return Application( layout=self.ptpython_layout.layout, key_bindings=merge_key_bindings( [ load_python_bindings(self), load_auto_suggest_bindings(), load_sidebar_bindings(self), load_confirm_exit_bindings(self), ConditionalKeyBindings( load_open_in_editor_bindings(), Condition(lambda: self.enable_open_in_editor), ), # Extra key bindings should not be active when the sidebar is visible. ConditionalKeyBindings( self.extra_key_bindings, Condition(lambda: not self.show_sidebar), ), ] ), color_depth=lambda: self.color_depth, paste_mode=Condition(lambda: self.paste_mode), mouse_support=Condition(lambda: self.enable_mouse_support), style=DynamicStyle(lambda: self._current_style), style_transformation=self.style_transformation, include_default_pygments_style=False, reverse_vi_search_direction=True, cursor=DynamicCursorShapeConfig( lambda: self.all_cursor_shape_configs[self.cursor_shape_config] ), input=input, output=output, ) def _create_buffer(self) -> Buffer: """ Create the `Buffer` for the Python input. """ python_buffer = Buffer( name=DEFAULT_BUFFER, complete_while_typing=Condition(lambda: self.complete_while_typing), enable_history_search=Condition(lambda: self.enable_history_search), tempfile_suffix=".py", history=self.history, completer=ThreadedCompleter(self._completer), validator=ConditionalValidator( self._validator, Condition(lambda: self.enable_input_validation) ), auto_suggest=ConditionalAutoSuggest( ThreadedAutoSuggest(AutoSuggestFromHistory()), Condition(lambda: self.enable_auto_suggest), ), accept_handler=self._accept_handler, on_text_changed=self._on_input_timeout, ) return python_buffer @property def editing_mode(self) -> EditingMode: return self.app.editing_mode @editing_mode.setter def editing_mode(self, value: EditingMode) -> None: self.app.editing_mode = value @property def vi_mode(self) -> bool: return self.editing_mode == EditingMode.VI @vi_mode.setter def vi_mode(self, value: bool) -> None: if value: self.editing_mode = EditingMode.VI else: self.editing_mode = EditingMode.EMACS @property def app(self) -> Application[str]: if self._app is None: return get_app() return self._app def _on_input_timeout(self, buff: Buffer) -> None: """ When there is no input activity, in another thread, get the signature of the current code. """ def get_signatures_in_executor(document: Document) -> list[Signature]: # First, get signatures from Jedi. If we didn't found any and if # "dictionary completion" (eval-based completion) is enabled, then # get signatures using eval. signatures = get_signatures_using_jedi( document, self.get_locals(), self.get_globals() ) |
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