将多个csv合并，并添加一列文件名。代码提示No objects to concatenate

将多个csv合并，并添加一列文件名。代码提示No objects to concatenate

问题相关代码，请勿粘贴截图

#将多个csv合并，并添加一列文件名
import os
import pandas as pd
import glob

globbed_files = glob.glob(r"E:/trans_adv/adv/*/*.csv") #读取所有csv
headerList = ["index","depth","isGroup","isActive","CommandType","content","name","filename"] #文件表头

data = [] # 创建容器
for csv in globbed_files:
    frame = pd.read_csv(csv) 
    frame['filename'] = os.path.basename(csv) 
    data.append(frame)  #添加文件名为列

#写入新文件
newdata = pd.concat(data, ignore_index=True) #去掉所有单独csv文件表头，并合并所有csv
newdata.writerow(headerList) #添加新表头
newdata.to_csv("all_data.csv")

运行结果及报错内容

Traceback (most recent call last):
File "e:\trans_adv\Test.py", line 16, in
newdata = pd.concat(data, ignore_index=True) #ȥ�����е���csv�ļ���ͷ�����ϲ�csv
File "D:\Python\3.7.1\lib\site-packages\pandas\util_decorators.py", line 311, in wrapper
return func(*args, **kwargs)
File "D:\Python\3.7.1\lib\site-packages\pandas\core\reshape\concat.py", line 304, in concat
sort=sort,
File "D:\Python\3.7.1\lib\site-packages\pandas\core\reshape\concat.py", line 351, in init
raise ValueError("No objects to concatenate")
ValueError: No objects to concatenate

答案出来了，地址引用，我用了双 引号，我怕不是个傻子吧！！

无数据不好测