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..
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__init__.py
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__main__.py
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__pycache__
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_cell_widths.py
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_emoji_codes.py
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_emoji_replace.py
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_export_format.py
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_extension.py
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_fileno.py
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_inspect.py
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_log_render.py
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_loop.py
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_null_file.py
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_palettes.py
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_pick.py
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_ratio.py
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_spinners.py
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_stack.py
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_timer.py
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_win32_console.py
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_windows.py
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_windows_renderer.py
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_wrap.py
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abc.py
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align.py
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ansi.py
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bar.py
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box.py
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cells.py
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color.py
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color_triplet.py
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columns.py
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console.py
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constrain.py
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containers.py
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control.py
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default_styles.py
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diagnose.py
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emoji.py
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errors.py
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file_proxy.py
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filesize.py
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highlighter.py
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json.py
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jupyter.py
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layout.py
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live.py
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live_render.py
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logging.py
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markup.py
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measure.py
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padding.py
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pager.py
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palette.py
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panel.py
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pretty.py
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progress.py
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progress_bar.py
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prompt.py
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protocol.py
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py.typed
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region.py
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repr.py
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rule.py
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scope.py
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screen.py
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segment.py
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spinner.py
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status.py
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style.py
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styled.py
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syntax.py
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table.py
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terminal_theme.py
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text.py
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theme.py
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themes.py
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traceback.py
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tree.py
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Editing: spinner.py
from typing import cast, List, Optional, TYPE_CHECKING, Union from ._spinners import SPINNERS from .measure import Measurement from .table import Table from .text import Text if TYPE_CHECKING: from .console import Console, ConsoleOptions, RenderResult, RenderableType from .style import StyleType class Spinner: """A spinner animation. Args: name (str): Name of spinner (run python -m rich.spinner). text (RenderableType, optional): A renderable to display at the right of the spinner (str or Text typically). Defaults to "". style (StyleType, optional): Style for spinner animation. Defaults to None. speed (float, optional): Speed factor for animation. Defaults to 1.0. Raises: KeyError: If name isn't one of the supported spinner animations. """ def __init__( self, name: str, text: "RenderableType" = "", *, style: Optional["StyleType"] = None, speed: float = 1.0, ) -> None: try: spinner = SPINNERS[name] except KeyError: raise KeyError(f"no spinner called {name!r}") self.text: "Union[RenderableType, Text]" = ( Text.from_markup(text) if isinstance(text, str) else text ) self.frames = cast(List[str], spinner["frames"])[:] self.interval = cast(float, spinner["interval"]) self.start_time: Optional[float] = None self.style = style self.speed = speed self.frame_no_offset: float = 0.0 self._update_speed = 0.0 def __rich_console__( self, console: "Console", options: "ConsoleOptions" ) -> "RenderResult": yield self.render(console.get_time()) def __rich_measure__( self, console: "Console", options: "ConsoleOptions" ) -> Measurement: text = self.render(0) return Measurement.get(console, options, text) def render(self, time: float) -> "RenderableType": """Render the spinner for a given time. Args: time (float): Time in seconds. Returns: RenderableType: A renderable containing animation frame. """ if self.start_time is None: self.start_time = time frame_no = ((time - self.start_time) * self.speed) / ( self.interval / 1000.0 ) + self.frame_no_offset frame = Text( self.frames[int(frame_no) % len(self.frames)], style=self.style or "" ) if self._update_speed: self.frame_no_offset = frame_no self.start_time = time self.speed = self._update_speed self._update_speed = 0.0 if not self.text: return frame elif isinstance(self.text, (str, Text)): return Text.assemble(frame, " ", self.text) else: table = Table.grid(padding=1) table.add_row(frame, self.text) return table def update( self, *, text: "RenderableType" = "", style: Optional["StyleType"] = None, speed: Optional[float] = None, ) -> None: """Updates attributes of a spinner after it has been started. Args: text (RenderableType, optional): A renderable to display at the right of the spinner (str or Text typically). Defaults to "". style (StyleType, optional): Style for spinner animation. Defaults to None. speed (float, optional): Speed factor for animation. Defaults to None. """ if text: self.text = Text.from_markup(text) if isinstance(text, str) else text if style: self.style = style if speed: self._update_speed = speed if __name__ == "__main__": # pragma: no cover from time import sleep from .columns import Columns from .panel import Panel from .live import Live all_spinners = Columns( [ Spinner(spinner_name, text=Text(repr(spinner_name), style="green")) for spinner_name in sorted(SPINNERS.keys()) ], column_first=True, expand=True, ) with Live( Panel(all_spinners, title="Spinners", border_style="blue"), refresh_per_second=20, ) as live: while True: sleep(0.1)
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