Maya Python:检查属性是否有任何关键帧

Question

我正在尝试为Maya编写一个python脚本，该脚本将关键帧从一个装备复制到另一个装备。我找到了一些物品并将它们配对。如果原始对象有要复制的关键帧，我现在要做的是从原始对象复制关键帧。我希望使用"关键帧"命令来检查对象是否有关键帧。

示例：如果cmds.keyframe(oldObjPath attribute=oldAttr，sl=True，q=True，tc=True)>0:

然而，这总是返回错误。当我打印出oldObjPath的属性时，我确实会打印出所有属性。知道我在这里做错了什么吗？完整代码低于

关键帧命令文档：http://download.autodesk.com/global/docs/maya2014/en_us/index.html?url=files/Python_Python_in_Maya.htm，主题编号=d30e813275

#create a decunary of the object names and paths for faster searching
#[search_name:path]
originalObjectDic = {}
newObjectDic = {}
for obj in originalObjects:
#First remove the full path to give us somthing to search the new object with
subStrLoc = 0
index = 0
for char in obj:
if char == ':':
subStrLoc = index
index=index+1
searchName = obj[subStrLoc+1:]
originalObjectDic.update({searchName:obj})

#next look at all the names of the new object and see if they match up    
for nObj in newObjects:
#correct the new objects name
subStrLoc=0
index=0
for char in nObj:
if index != 0:
if char == '_' and nObj[index-1] == 'r' and nObj[index-2] == 'u' and nObj[index-3] == 'F':
subStrLoc = index
index = index + 1  
if subStrLoc == 0:
index = 0
for char in obj:
if char == ':':
subStrLoc = index
index=index+1 
searchName = nObj[subStrLoc+1:]
newObjectDic.update({searchName:nObj})   

#now that we have to dicunaries to check agaenst we will match up the two obj paths
# and copy the keys on all attributes on each node
for key in newObjectDic:
newObjPath = newObjectDic.get(key)
oldObjPath = originalObjectDic.get(key)
#if there is a match between the two dics
if newObjPath != None and oldObjPath != None:
#get a list of all the attributes
newObjAttributes = cmds.listAttr(newObjPath,v=True,r=True, w=True)
oldObjAttributes = cmds.listAttr(oldObjPath,v=True,r=True, w=True)
for x in range(len(newObjAttributes)-1):
newAttr = newObjAttributes[x]
oldAttr = oldObjAttributes[x]
if cmds.keyframe(oldObjPath attribute=oldAttr,sl=True, q=True, tc=True ) > 0:
print oldObjPath
print oldAttr
print 'Has Key'
print '----------------------------'

Answer 1

得到朋友的帮助。在.sl上有一个错误的选项，代表选择应该是错误的，或者根本不存在，所以…

if cmds.keyframe(oldObjPath, attribute=oldAttr, sl=False, q=True, tc=True):