Jun 17, 2020 · Jun 17, 2020 · Oct 28, 2023 · Oct 28, 2023 · Oct 30, 2023 · Oct 30, 2023
diff --git a/Lib/turtle.py b/Lib/turtle.py
        """ Draw a circle with given radius.

        Arguments:
        radius -- a number
        extent (optional) -- a number
        radius -- a number (distance)
        extent (optional) -- a number (angle, in degrees)
        steps (optional) -- an integer

        With one argument, draw a circle with the given radius. The
        center is radius units to the left of the turtle. If radius is
        negative, the center is to the right.

        If extent is given, do not draw the whole circle, but only an
        arc of the circle extent degrees wide starting from the current
        position. If extent is negative, draw the arc while moving
        backwards around the circle from the current position. In either
        case the final heading of the turtle will be extent degrees
        different from the original heading.

        The circle or arc drawn is not a true geometric curve (impossible
        on a computer screen composed of pixels), but rather is composed
        of many very short straight steps. The number of steps to use is
        calculated automatically to give the appearance of a true curve.

        If steps argument is given, that many steps are taken around the
        circle or arc rather than the number being calculated automatically.
        This can be used to draw regular polygons.

        Draw a circle with given radius. The center is radius units left
        of the turtle; extent - an angle - determines which part of the
        circle is drawn. If extent is not given, draw the entire circle.
        If extent is not a full circle, one endpoint of the arc is the
        current pen position. Draw the arc in counterclockwise direction
        if radius is positive, otherwise in clockwise direction. Finally
        the direction of the turtle is changed by the amount of extent.

        As the circle is approximated by an inscribed regular polygon,
        steps determines the number of steps to use. If not given,
        it will be calculated automatically. Maybe used to draw regular
        polygons.

        call: circle(radius)                  # full circle
        --or: circle(radius, extent)          # arc
        --or: circle(radius, extent, steps)
        --or: circle(radius, steps=6)         # 6-sided polygon

        Example (for a Turtle instance named turtle):
        >>> turtle.circle(50)
        >>> turtle.circle(120, 180)  # semicircle
        Examples (for a Turtle instance named turtle):
        >>> turtle.circle(50)           # full circle of radius 50 drawn counter-clockwise
        >>> turtle.circle(-75)          # full circle of radius 75 drawn clockwise
        >>> turtle.circle(-50, 60)      # 60 degree arc with radius 50 drawn clockwise
        >>> turtle.circle(80, steps=6)  # regular hexagon

        Unusual cases:
        >>> turtle.circle(-50, -180)    # semicircle drawn backwards, counter-clockwise
        >>> turtle.circle(100, 180, 2)  # two sides of a square with diagonal length 200
        >>> turtle.circle(100, 720, 10) # go twice around a pentagon
        """
        if self.undobuffer:
            self.undobuffer.push(["seq"])