# -*- coding: utf-8 -*-
"""
Created on Tue Jul 13 16:09:34 2021

@author: kang
"""

def count_words(filename):
    try:
        with open(filename,'r') as f_obj:
            contents = f_obj.read() 
    except FileNotFoundError:
        pass
    else:
        # Count approximate number of words in the file.
        words = contents.split()
        num_words = len(words)
        print("The file " + filename + " has about " + str(num_words) + " words.")

filenames = ['D:\\study_soft\\Anaconda\\workstation\\a.txt']
count_words(filenames)

这是我的代码段，是为了分析a.txt里面有多少个词，结果运行出现了以下的错误：

runcell(0, 'D:/study_soft/Anaconda/workstation/1.分析文本.py')
Traceback (most recent call last):

  File "D:\study_soft\Anaconda\workstation\1.分析文本.py", line 21, in <module>
    count_words(filenames)

  File "D:\study_soft\Anaconda\workstation\1.分析文本.py", line 10, in count_words
    with open(filename,'r') as f_obj:

TypeError: expected str, bytes or os.PathLike object, not list

重点就在最后一句：

TypeError: expected str, bytes or os.PathLike object, not list

问题解决：

1. 使用绝对路径的时候，注意要用两个单斜杠；

2. 写文件的名称的时候，不能加[ ]。（本人的代码中就是这个问题，加了[ ]）

将[ ]去掉，即可

def count_words(filename):
    try:
        with open(filename,'r') as f_obj:
            contents = f_obj.read() 
    except FileNotFoundError:
        pass
    else:
        # Count approximate number of words in the file.
        words = contents.split()
        num_words = len(words)
        print("The file " + filename + " has about " + str(num_words) + " words.")

filenames = 'D:\\study_soft\\Anaconda\\workstation\\a.txt'
count_words(filenames)

运行结果:

runcell(0, 'D:/study_soft/Anaconda/workstation/1.分析文本.py')
The file D:\study_soft\Anaconda\workstation\a.txt has about 1 words.

至此，问题解决！！！