python 批量修改文件名称

def file_name_batch_modify(path=None, searchContents=None, replacedContents=None, fileFormat=None):
    if fileFormat == None:
        return -1
    if not os.path.exists(path) or not os.path.isdir(path):
        return -2
    if not (isinstance(searchContents,(str,list)) and isinstance(replacedContents,(str,list))):
        return -3
    else:
        if type(searchContents) != type(replacedContents):
            if isinstance(searchContents,str):
                searchContents = [searchContents]
            else:
                replacedContents = [replacedContents]
        if len(searchContents)!=len(replacedContents):
            for i in range(max(len(searchContents), len(replacedContents))):
                if len(searchContents) < len(replacedContents):
                    searchContents.append(searchContents[0])
                else:
                    replacedContents.append(replacedContents[0])
    if isinstance(fileFormat, str):
        fileFormat = [fileFormat]
    elif not isinstance(fileFormat,list):
        return -4
    listDir = os.listdir(path)
    try:
        for i in range(len(listDir)):
            fileName = listDir[i]
            if not os.path.isfile(os.path.join(path, fileName)):
                continue
            suffix = fileName.split('.')[-1]
            if fileFormat.count(suffix)==0:
                continue
            tempName = fileName
            for _ in searchContents:
                if fileName.__contains__(_):
                    tempName = tempName.replace(_,replacedContents[searchContents.index(_)])
            os.rename(os.path.join(path, fileName),
                      os.path.join(path, tempName))
        return 0
    except:
        return -999