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?? ..
?? __init__.py(5.8 KB)
?? __main__.py(8.6 KB)
?? __pycache__
?? _cell_widths.py(9.86 KB)
?? _emoji_codes.py(136.95 KB)
?? _emoji_replace.py(1.04 KB)
?? _export_format.py(2.06 KB)
?? _extension.py(265 B)
?? _inspect.py(9.47 KB)
?? _log_render.py(3.15 KB)
?? _loop.py(1.21 KB)
?? _palettes.py(6.9 KB)
?? _pick.py(423 B)
?? _ratio.py(5.34 KB)
?? _spinners.py(19.45 KB)
?? _stack.py(351 B)
?? _timer.py(417 B)
?? _win32_console.py(22.29 KB)
?? _windows.py(1.88 KB)
?? _windows_renderer.py(2.72 KB)
?? _wrap.py(1.8 KB)
?? abc.py(890 B)
?? align.py(10.13 KB)
?? ansi.py(6.66 KB)
?? bar.py(3.19 KB)
?? box.py(9.63 KB)
?? cells.py(4.4 KB)
?? color.py(17.54 KB)
?? color_triplet.py(1.03 KB)
?? columns.py(6.96 KB)
?? console.py(93.64 KB)
?? constrain.py(1.26 KB)
?? containers.py(5.37 KB)
?? control.py(6.47 KB)
?? default_styles.py(7.77 KB)
?? diagnose.py(972 B)
?? emoji.py(2.44 KB)
?? errors.py(642 B)
?? file_proxy.py(1.58 KB)
?? filesize.py(2.45 KB)
?? highlighter.py(9.36 KB)
?? json.py(4.93 KB)
?? jupyter.py(3.18 KB)
?? layout.py(13.74 KB)
?? live.py(13.84 KB)
?? live_render.py(3.58 KB)
?? logging.py(11.2 KB)
?? markup.py(8.01 KB)
?? measure.py(5.18 KB)
?? padding.py(4.85 KB)
?? pager.py(828 B)
?? palette.py(3.32 KB)
?? panel.py(8.54 KB)
?? pretty.py(35.72 KB)
?? progress.py(58.35 KB)
?? progress_bar.py(7.97 KB)
?? prompt.py(11.04 KB)
?? protocol.py(1.36 KB)
?? region.py(166 B)
?? repr.py(4.34 KB)
?? rule.py(4.66 KB)
?? scope.py(2.78 KB)
?? screen.py(1.55 KB)
?? segment.py(23.66 KB)
?? spinner.py(4.27 KB)
?? status.py(4.32 KB)
?? style.py(25.63 KB)
?? styled.py(1.23 KB)
?? syntax.py(33.88 KB)
?? table.py(38.59 KB)
?? terminal_theme.py(3.29 KB)
?? text.py(43.62 KB)
?? theme.py(3.54 KB)
?? themes.py(102 B)
?? traceback.py(25.45 KB)
?? tree.py(8.95 KB)

Editing: progress_bar.py

import math
from functools import lru_cache
from time import monotonic
from typing import Iterable, List, Optional

from .color import Color, blend_rgb
from .color_triplet import ColorTriplet
from .console import Console, ConsoleOptions, RenderResult
from .jupyter import JupyterMixin
from .measure import Measurement
from .segment import Segment
from .style import Style, StyleType

# Number of characters before 'pulse' animation repeats
PULSE_SIZE = 20

class ProgressBar(JupyterMixin):
    """Renders a (progress) bar. Used by rich.progress.

Args:
        total (float, optional): Number of steps in the bar. Defaults to 100. Set to None to render a pulsing animation.
        completed (float, optional): Number of steps completed. Defaults to 0.
        width (int, optional): Width of the bar, or ``None`` for maximum width. Defaults to None.
        pulse (bool, optional): Enable pulse effect. Defaults to False. Will pulse if a None total was passed.
        style (StyleType, optional): Style for the bar background. Defaults to "bar.back".
        complete_style (StyleType, optional): Style for the completed bar. Defaults to "bar.complete".
        finished_style (StyleType, optional): Style for a finished bar. Defaults to "bar.done".
        pulse_style (StyleType, optional): Style for pulsing bars. Defaults to "bar.pulse".
        animation_time (Optional[float], optional): Time in seconds to use for animation, or None to use system time.
    """

def __init__(
        self,
        total: Optional[float] = 100.0,
        completed: float = 0,
        width: Optional[int] = None,
        pulse: bool = False,
        style: StyleType = "bar.back",
        complete_style: StyleType = "bar.complete",
        finished_style: StyleType = "bar.finished",
        pulse_style: StyleType = "bar.pulse",
        animation_time: Optional[float] = None,
    ):
        self.total = total
        self.completed = completed
        self.width = width
        self.pulse = pulse
        self.style = style
        self.complete_style = complete_style
        self.finished_style = finished_style
        self.pulse_style = pulse_style
        self.animation_time = animation_time

self._pulse_segments: Optional[List[Segment]] = None

def __repr__(self) -> str:
        return f"<Bar {self.completed!r} of {self.total!r}>"

@property
    def percentage_completed(self) -> Optional[float]:
        """Calculate percentage complete."""
        if self.total is None:
            return None
        completed = (self.completed / self.total) * 100.0
        completed = min(100, max(0.0, completed))
        return completed

@lru_cache(maxsize=16)
    def _get_pulse_segments(
        self,
        fore_style: Style,
        back_style: Style,
        color_system: str,
        no_color: bool,
        ascii: bool = False,
    ) -> List[Segment]:
        """Get a list of segments to render a pulse animation.

Returns:
            List[Segment]: A list of segments, one segment per character.
        """
        bar = "-" if ascii else "━"
        segments: List[Segment] = []
        if color_system not in ("standard", "eight_bit", "truecolor") or no_color:
            segments += [Segment(bar, fore_style)] * (PULSE_SIZE // 2)
            segments += [Segment(" " if no_color else bar, back_style)] * (
                PULSE_SIZE - (PULSE_SIZE // 2)
            )
            return segments

append = segments.append
        fore_color = (
            fore_style.color.get_truecolor()
            if fore_style.color
            else ColorTriplet(255, 0, 255)
        )
        back_color = (
            back_style.color.get_truecolor()
            if back_style.color
            else ColorTriplet(0, 0, 0)
        )
        cos = math.cos
        pi = math.pi
        _Segment = Segment
        _Style = Style
        from_triplet = Color.from_triplet

for index in range(PULSE_SIZE):
            position = index / PULSE_SIZE
            fade = 0.5 + cos((position * pi * 2)) / 2.0
            color = blend_rgb(fore_color, back_color, cross_fade=fade)
            append(_Segment(bar, _Style(color=from_triplet(color))))
        return segments

def update(self, completed: float, total: Optional[float] = None) -> None:
        """Update progress with new values.

Args:
            completed (float): Number of steps completed.
            total (float, optional): Total number of steps, or ``None`` to not change. Defaults to None.
        """
        self.completed = completed
        self.total = total if total is not None else self.total

def _render_pulse(
        self, console: Console, width: int, ascii: bool = False
    ) -> Iterable[Segment]:
        """Renders the pulse animation.

Args:
            console (Console): Console instance.
            width (int): Width in characters of pulse animation.

Returns:
            RenderResult: [description]

Yields:
            Iterator[Segment]: Segments to render pulse
        """
        fore_style = console.get_style(self.pulse_style, default="white")
        back_style = console.get_style(self.style, default="black")

pulse_segments = self._get_pulse_segments(
            fore_style, back_style, console.color_system, console.no_color, ascii=ascii
        )
        segment_count = len(pulse_segments)
        current_time = (
            monotonic() if self.animation_time is None else self.animation_time
        )
        segments = pulse_segments * (int(width / segment_count) + 2)
        offset = int(-current_time * 15) % segment_count
        segments = segments[offset : offset + width]
        yield from segments

def __rich_console__(
        self, console: Console, options: ConsoleOptions
    ) -> RenderResult:

width = min(self.width or options.max_width, options.max_width)
        ascii = options.legacy_windows or options.ascii_only
        should_pulse = self.pulse or self.total is None
        if should_pulse:
            yield from self._render_pulse(console, width, ascii=ascii)
            return

completed: Optional[float] = (
            min(self.total, max(0, self.completed)) if self.total is not None else None
        )

bar = "-" if ascii else "━"
        half_bar_right = " " if ascii else "╸"
        half_bar_left = " " if ascii else "╺"
        complete_halves = (
            int(width * 2 * completed / self.total)
            if self.total and completed is not None
            else width * 2
        )
        bar_count = complete_halves // 2
        half_bar_count = complete_halves % 2
        style = console.get_style(self.style)
        is_finished = self.total is None or self.completed >= self.total
        complete_style = console.get_style(
            self.finished_style if is_finished else self.complete_style
        )
        _Segment = Segment
        if bar_count:
            yield _Segment(bar * bar_count, complete_style)
        if half_bar_count:
            yield _Segment(half_bar_right * half_bar_count, complete_style)

if not console.no_color:
            remaining_bars = width - bar_count - half_bar_count
            if remaining_bars and console.color_system is not None:
                if not half_bar_count and bar_count:
                    yield _Segment(half_bar_left, style)
                    remaining_bars -= 1
                if remaining_bars:
                    yield _Segment(bar * remaining_bars, style)

def __rich_measure__(
        self, console: Console, options: ConsoleOptions
    ) -> Measurement:
        return (
            Measurement(self.width, self.width)
            if self.width is not None
            else Measurement(4, options.max_width)
        )

if __name__ == "__main__":  # pragma: no cover
    console = Console()
    bar = ProgressBar(width=50, total=100)

import time

console.show_cursor(False)
    for n in range(0, 101, 1):
        bar.update(n)
        console.print(bar)
        console.file.write("\r")
        time.sleep(0.05)
    console.show_cursor(True)
    console.print()

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