Question

我在这里的第一篇文章，但我花了最后几周基本上生活在S.O.，寻找答案和解决方案。不幸的是，我在这里或其他任何地方找不到我当前问题的答案，所以我希望你们中的一个可爱的人能帮助我。

我正在尝试从Windows中批量处理Autodesk Maya文件，以将引用的文件路径替换为一个单一目录。目前，它只是在我尝试执行代码后返回“”。

到目前为止，这是我的代码 - 请尽可能多地选择它，我需要做得更好！

### Reference Example
# file -rdi 2 -ns "platform3_MDL_MASTER" -rfn 
# "Toyota_2000GT_Spider:Toyota2000GT_Spider_RN"
#          -typ "mayaAscii" 
# "C:/svn/TEST/previs/maya_references/Toyota_2000GT_Spider.ma";


import os

# Defining the reference paths - before and after
projectPath = "C:/projects/TEST/previs"
originalPath = "C:/projects/TEST/previs/maya_references/"
newPath = "R:/projects/FRAT/production/maya_references/"

# Makes a list of all previs files in the given directory.
previsFiles = [os.path.join(d, x)
            for d, dirs, files in os.walk(projectPath)
            for x in files if x.endswith("_PREVIS.ma")]


previsSuffix = '.ma";'
newLines = []

# Loops through each previs file found...
# for each line that contains the previsSuffix...
# and splits the filepath into a directory and a filename
# and then replaces that originalPath with the newPath.
for scene in previsFiles:
    with open(scene, "r") as fp:
        previsReadlines = fp.readlines()
        for line in previsReadlines:
            if previsSuffix in line:
                # Splits the directory from the file name. 
                lines = os.path.split(line)
                newLines = line.replace(lines[0], newPath)
        else:
            break

    with open(scene, 'w') as fw:
        previsWritelines = fw.writelines()

Answer 1

你可以调整它以使用你的脚本，但我希望它能让你大致了解如何用另一个替换参考路径。

原始代码有两个主要问题：

1）你实际上没有改变内容。执行newLines =实际上并未重新分配previsReadlines，因此未记录更改。

2）没有传递任何东西来写。 writelines需要您想要编写的参数。

# Adjust these paths to existing maya scene files.
scnPath = "/path/to/file/to/open.ma"
oldPath = "/path/to/old/file.ma"
newPath = "/path/to/new/file.ma"

with open(scnPath, "r") as fp:
    # Get all file contents in a list.
    fileLines = fp.readlines()

    # Use enumerate to keep track of what index we're at.
    for i, line in enumerate(previsReadlines):
        # Check if the line has the old path in it.
        if oldPath in line:
            # Replace with the new path and assign the change.
            # Before you were assigning this to a new variable that goes nowhere.
            # Instead it needs to re-assign the line from the list we first read from.
            fileLines[i] = line.replace(oldPath, newPath)

# Completely replace the file with our changes.
with open(scnPath, 'w') as fw:
    # You must pass the contents in here to write it.
    fw.writelines(fileLines)

Maya ASCII文件路径替换

1 个答案: