不知道为什么路径只存在于whileloop的一部分

Question

在我的while循环中的某个特定点，我跑步操作系统列表目录在一个三项索引上生成一个文件列表，我得到“Windows错误3-路径不存在”，尽管我以前在脚本中成功地调用了这个路径。你知道吗

我跑了一辆os.path.exists存在在它之后，它说，对于前两个循环，目录的计算结果为False，但在第三个循环中，它的计算结果为True。你知道吗

我试过用全球。全球它也只返回第三个循环中的文件。你知道吗

问题在于while循环中的“根据找到的快照数创建读取节点”注释。你知道吗

任何帮助必须阅读它作为真正的从一开始将不胜感激，谢谢！你知道吗

# Iterating using while loop, this gets every version folder for each shots' plates and stores to a "version" list 

while shotIndex < shotAmountTotal: 
    nextShot = (shots[shotIndex]) 
    shotIndex += 1
    verSearchPath = shotSearchPath + '/' + nextShot + '/' + compFolder + '/' + platesFolder
    foundVerList = os.listdir(verSearchPath)
    verListCombined.append(foundVerList)
    verListSorted = list(chain.from_iterable(verListCombined))



#this groups the like folder names, splits them at the underscore before the version number and then returns only the highest version number of each group

    groupedShotFolders = groupby(verListSorted, key=lambda version: version.rsplit('_', 1)[0])
    latestShotVer = [sorted(group, reverse=True)[0] for key, group in groupedShotFolders]


#creates Read nodes based on number of shots found

latestShotAmount = len(latestShotVer)
latestShotIndex = 0

while latestShotIndex < latestShotAmount:
    latestShot = (latestShotVer[latestShotIndex])
    frameListerPath = verSearchPath + '/' + latestShot + '/' + fileExtension + '/'
    print os.path.exists(frameListerPath)        

    frameLister = os.listdir(verSearchPath + '/' + latestShot + '/' + fileExtension + '/')

我得到的终端输出是：

Result: False
E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_010_BG_001_v002/exr/
[]
False
E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_010_FG_001_v003/exr/
[]
True
E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_020_BG_001_v003/exr/
['E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_020_BG_001_v003/exr\\MRS_103_005_020_BG_001_v003.0999.exr', 'E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_020_BG_001_v003/exr\\MRS_103_005_020_BG_001_v003.1000.exr', 'E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_020_BG_001_v003/exr\\MRS_103_005_020_BG_001_v003.1001.exr', 'E:/projects/MBR/shots/103/MRS_103_005_020/2d/plates/MRS_103_005_020_BG_001_v003/exr\\MRS_103_005_020_BG_001_v003.1002.exr']

Answer 1

好吧，我要把这个归咎于用户错误。首先，我切换到“for”和“join”方法来清理一些东西。接下来，我发现前面代码中的“nextShot”变量没有正确迭代，所以它只输出迭代的最后一项，这就是为什么前两个路径的计算结果为False。我通过将“latestShot”变量放在适当的位置并删掉描述符来解决这个问题。你知道吗

以避免发生在操作系统列表目录“我把它分开，用前斜杠重新连接起来。你知道吗

谢谢你的想法和指导。你知道吗

for latestShot in latestShotVer:
    nuke.createNode("Read", inpanel = False)
    frameListerPath = os.path.join(shotSearchPath, latestShot[:-12], compFolder, platesFolder, latestShot, fileExtension)
    flsplit = frameListerPath.split('\\')
    fljoin = '/'.join(flsplit)
    frameListerPath = fljoin
    frameLister = os.listdir(frameListerPath)