python - 更改目录和重命名问题

Question

我希望完成的是扫描指定目录中的所有文件并删除名称中包含的数字。问题是我无法使用下面的代码更改目录。

我目前正在参加 Udacity 全栈纳米学位类(class)，所以如果有人能帮助我，那也在该计划中，那将是一个加号。

代码如下:

import os

def rename_files():
    #(1) Get file names from a folder
    file_list = os.listdir("/Users/bill/Documents/web/LocalServer/prank")
    #print (file_list)
    saved_path = os.getcwd()
    print("Our current working directory is " + saved_path)
    os.chdir('/Users/bill/Documents/web/LocalServer/prank')
    print("Our current working directory is ", saved_path)
    #(2) For each file, rename filename
    for file_name in file_list:
        #print("Old Name - " + file_name)
        #print("New Name - " + file_name.translate("0123457689"))
        os.rename(file_name, file_name.translate("0123457689"))
    os.chdir(saved_path)
    print("Our current working directory is ", saved_path)

rename_files()

这是我得到的输出:

Our current working directory is /Users/bill/Documents/web/LocalServer
Our current working directory is  /Users/bill/Documents/web/LocalServer
Our current working directory is  /Users/bill/Documents/web/LocalServer

更新 1:

我终于更改了目录，但我仍然无法重命名文件。 (例如:68chicago.jpg 到 chicago.jpg)

这是我当前的代码:

import os

def rename_files():
    #(1) Get file names from a folder 
    file_list = os.listdir("/Users/bill/Documents/web/LocalServer/prank")
    #print (file_list)
    saved_path = os.getcwd()
    print("Our current working directory is " + saved_path)
    os.chdir('/Users/bill/Documents/web/LocalServer/prank')
    new_path = os.getcwd()
    print("Our current working directory is ", new_path)
    #(2) For each file, rename filename
    for file_name in file_list:
        #print("Old Name - " + file_name)
        #print("New Name - " + file_name.translate("0123457689"))
        os.rename(file_name, file_name.translate("0123457689"))
    print("Our current working directory is ", new_path)

rename_files()

这是我当前的输出:

Our current working directory is /Users/bill/Documents/web/LocalServer
Our current working directory is  /Users/bill/Documents/web/LocalServer/prank
Our current working directory is  /Users/bill/Documents/web/LocalServer/prank

更新 2:

感谢@Dan，我终于解决了这个问题。

这是他的代码:

import os
def rename_files():
    #(1) Get file names from a folder 
    file_list = os.listdir("/Users/bill/Documents/web/LocalServer/prank")
    #print (file_list)
    saved_path = os.getcwd()
    print("Our current working directory is " + saved_path)
    os.chdir('/Users/bill/Documents/web/LocalServer/prank')
    new_path = os.getcwd()
    print("Our current working directory is ", new_path)
    #(2) For each file, rename filename
    for file_name in file_list:
        #print("Old Name - " + file_name)
        #print("New Name - " + file_name.translate("0123457689"))
        os.rename(file_name, ''.join([i for i in file_name if not i.isdigit()])) # This works on my machine
    os.chdir(saved_path)
    print("Our current working directory is ", saved_path)
rename_files()

Answer 1

看起来你想换一个目录，然后再换回第一个目录？如果是这种情况，您需要这样的东西:

import os

def rename_files():
    #(1) Get file names from a folder
    file_list = os.listdir("/Users/bill/Documents/web/LocalServer/prank")
    #print (file_list)
    saved_path = os.getcwd()
    print("Our current working directory is " + saved_path)
    os.chdir('/Users/bill/Documents/web/LocalServer/prank')
    new_path = os.getcwd()
    print("Our current working directory is ", new_path)
    #(2) For each file, rename filename
    for file_name in file_list:
        #print("Old Name - " + file_name)
        #print("New Name - " + file_name.translate("0123457689"))
        os.rename(file_name, ''.join([i for i in file_name if not i.isdigit()])) # This works on my machine

    os.chdir(saved_path)
    print("Our current working directory is ", saved_path)

rename_files()