我如何对列表进行排序 python maya

Question

我有一个列表[0, 0, 0, 0.5, 0.5]，我想对它进行排序，只保留不等于0的值。

from maya import cmds

def splitShape():
    a = cmds.ls(sl=True)

    if len(a)<=1:
        cmds.warning( "Select 2 target")

    elif len(a) >= 2:
        #cmds.warning( "SPLIIIIIT")
        cmds.select( a[0] , r = True)
        Vertex = a[0] + '.vtx[*]'
        cmds.select(Vertex)

        #_____LIST______
        b = cmds.getAttr(a[0] + 'Shape' + '.pnts[*]' + '.pntz')
        #print b

        if len(b) == 0:
            print ok
        elif len(b) != 0:
            cmds.setAttr( a[0] + 'Shape' + '.pnts[*]' + '.pntz' , 0)

坦克:)

Answer 1

要过滤仅保留不等于零的值的列表：

a = [0, 0, 0, 0.5 ,0.5]
list(filter(lambda x: x != 0, a))
# [0.5, 0.5]

Answer 2

a = [0, 0, 0, 0.5 ,0.5]

b = [x for x in a if a != 0] # list comprehension

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