在 Python 中使用 os.rename() 重命名文件时出错

Question

import os

for filename in os.listdir("C:/Users/Awesome/Music"):
    if filename.endswith("lyrics.mp3"):
        os.rename(filename,filename[0 : len(filename)-11]+".mp3")

The code above returns the error

File "c:/python/lyrics-pop.py", line 6, in <module>
    os.rename(filename,filename[0 : len(filename)-11]+".mp3")
FileNotFoundError: [WinError 2] The system cannot find the file specified: '2 Chainz - Bigger Than You (feat Drake  Quavo) lyrics.mp3' -> '2 Chainz - Bigger Than You (feat Drake  Quavo).mp3'

"""

I have made sure that no other program is accessing the.mp3 files and removed the readonly attribute. What could be causing this?

Answer 1

Probably, the issue is that you are passing relative path to os.rename, add dir to file path, like this:

import os
dir = "C:/Users/Awesome/Music"
for filename in os.listdir(dir):
    if filename.endswith("lyrics.mp3"):
        os.rename(os.path.join(dir,filename),os.path.join(dir,filename[0 : len(filename)-11])+".mp3")

Answer 2

This is because python can not find the file from where this program is running, since full path is not given.

You can do it as follows:

import os
filedir = "C:/Users/Awesome/Music"
for filename in os.listdir(filedir):
    if filename.endswith("lyrics.mp3"):
        filepath = os.path.join(filedir, filename)
        new_file = os.path.join(filedir, filename[0 : len(filename)-11]+".mp3")
        os.rename(filepath, new_file)

Answer 3

As suggested in the comments, the problem seems to be the relative path of the files.
You can use glob , which will give you the full path, ie:

from glob import glob
from os import rename

for f in glob("C:/Users/Awesome/Music/*lyrics.mp3"):
    rename(f, f[0 : len(f)-11]+".mp3")