The "circle" function of Turtle is inconsistent with Python.

[Morphlng]

In Python, the circle function could do two kinds of jobs.

1. draw a full circle with given radius. e.g. turtle.circle(100)
2. draw an arc with given radius and extent. e.g. turtle.circle(100, 135)

It seems like C-Turtle's circle function can only do the first one. Is there any way to achieve the second intention?