python - 无法使用 * with 导入

Question

我有以下代码：

https://github.com/marcomusy/vedo/blob/master/examples/basic/colorlines.py

"""Color lines by a scalar"""
from vedo import *

pts1 = [(sin(x/8), cos(x/8), x/5) for x in range(25)]
l1 = Line(pts1).c('black')
l2 = l1.clone().rotateZ(180).shift(1,0,0)

dist = mag(l1.points()-l2.points())  # make up some scalar values

# The trick here is to think that the "body" of a line is a cell
# so we can color cells as we do for any other polygonal mesh:
lines = Lines(l1, l2).lw(4).cmap('Accent', dist, on='cells')

lines.addScalarBar(title='distance') # or e.g.:
# lines.addScalarBar3D(title='distance').scalarbar.rotateX(90).pos(1,1,2)

show(l1,l2, lines, __doc__, axes=1, bg2='lightblue', viewup='z')

但是，这给了我以下错误：

Traceback (most recent call last):
  File "vedo.py", line 2, in <module>
    from vedo import *
  File "/Users/prikshetsharma/Documents/clotorch/src/clotorch/flight/vedo.py", line 4, in <module>
    pts1 = [(sin(x/8), cos(x/8), x/5) for x in range(25)]
  File "/Users/prikshetsharma/Documents/clotorch/src/clotorch/flight/vedo.py", line 4, in <listcomp>
    pts1 = [(sin(x/8), cos(x/8), x/5) for x in range(25)]
NameError: name 'sin' is not defined

但是sin是从vedo的init .py文件中的numpy导入的，所以应该在这个文件中定义。

标签： pythonimport