尝试重命名文件时指定了无效路径

下面的方法非常冗长，因为我使用的是字符串操作而不是正则表达式。这希望它对你来说更具可读性，但我建议只要你觉得足够舒服就改用正则表达式。请注意，处理字符串格式以重命名场景的函数将使用最少 2 位数字（01、02 等）和最多 3 位数字（100、101 等）。如果超过 999 次迭代，则需要稍作修改。注意：此方法依赖于文件版本之前的下划线（例如 _01.mb），而不是当前的字符串索引方法。import maya.cmds as cmdsdef getNextVersion():    curName = cmds.file(query=True, expandName=True) # eg. D:/yourScene_01.mb    curVersionFull = curName.split('_')[-1]          # eg. 01.mb    versionExtension = curVersionFull.split('.')     # eg. ['01', 'mb']    curVersionNum = int(versionExtension[0])         # eg. 1    extension = versionExtension[1]                  # eg. 'mb'    nextVersionNum = curVersionNum + 1               # increment your version    if nextVersionNum < 100:        nextVersionFull = '{:02d}.{}'.format(nextVersionNum, extension) # eg. 02.mb    else:        nextVersionFull = '{:03d}.{}'.format(nextVersionNum, extension) # eg. 100.mb    newName = curName.replace(curVersionFull, nextVersionFull)    return newNamecmds.file(rename=getNextVersion())cmds.file(save=True)更新：您已经接受了另一个答案，我相信您问题的核心是@green-cell 所描述的。至于这怎么可能，我真的不知道。Maya 通常不会让您保存到不存在的文件夹中。例如：import maya.cmds as cmdscmds.file(rename="D:/doesntexist/somefile.mb")# Error: An invalid path was specified. : D:/doesntexist/# Traceback (most recent call last):#   File "<maya console>", line 2, in <module># RuntimeError: An invalid path was specified. : D:/doesntexist/ # 无论如何，我在这里为您整理了一个更全面的功能。请注意，很难满足所有可能的文件名模式，特别是如果允许用户在过程的任何部分指定自己的文件名。这次我使用regular expressions，这使您的替换更加健壮（尽管远非万无一失）。import reimport osimport maya.cmds as cmdsdef getNextVersion(createDir=True):    '''Find next available filename iteration based on current scene name    Args:        createDir (bool, optional): True to create the output directory if required. False to leave as-is (may trigger a failure)    Returns:        str|None: Full file path with incremented version number. None on failure    '''    # Grab current filename. This always returns something. If unsaved, it will return something unsavory, but still a string    curFile = cmds.file(query=True, expandName=True)    print('Current filename is {}'.format(curFile))    # This matches a digit between 1 and 4 numbers in length, followed immediately by a file extension between 2 and 3 characters long    m = re.match(r'(.+?)(\d{1,4})\.(\w{2,3})', curFile)    if m == None:        print('Failed at regex execution. Filename does not match our desired pattern')        return None    # Extract regex matches    basePath = m.group(1)    version = m.group(2)    extension = m.group(3)    # Failsafe. Should not trigger    if not basePath or not version or not extension:        print('Failed at failsafe. Filename does not match our desired pattern')        return None    # Increment file version    numDigits = len(version)    newFile = None    try:        version = int(version) + 1        # Deal with padding        newLength = len(str(version))        if newLength > numDigits:            numDigits = newLength        # Compile new path        newFile = '{base}{ver:{numDig:02d}d}.{ext}'.format(base=basePath, ver=version, numDig=numDigits, ext=extension)    except Exception as e:        print('Error parsing new version for path {}: {}'.format(curFile, e))        return None    # Another failsafe    if not newFile:        print('Failed at failsafe. Filename calculations succeeded, but new path is not valid')        return None    # Create output dir if needed    dirname = os.path.dirname(newFile)    if createDir and not os.path.isdir(dirname):        try:            os.makedirs(dirname)            print('Created all dirs required to build path {}'.format(dirname))        except Exception as e:            print('Error creating path {}: {}'.format(dirname, e))            return None    return newFilenextVersion = getNextVersion()if not nextVersion:    cmds.error('Error parsing new filename increment. Please see console for more information')else:    cmds.file(rename=nextVersion)    cmds.file(save=True)

尝试重命名文件时指定了无效路径

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