重命名文件夹中的文件名

Question

I am doing udacity exercises. So I used the function os.rename(file_name,file_name.translate(str.maketrans('','','0123456789')) to remove numbers from filenames. It worked on the output window, but didn't change the names in the intended folder. Help!

Answer 1

In Python 2 it sounds like you can do it like so:

new_file_name = str.translate(file_name,None,str.maketrans('','','0123456789'))
os.rename(file_name, new_file_name)

In Python 3.1+ It is done like so:

new_file_name = file_name.translate(str.maketrans('','','0123456789'))
os.rename(file_name, new_file_name)

You can also accomplish the same thing with the str.replace function. It replaces all occurrences of one character with another character. I believe it is much more common to do the string replacement this way, but that is just because I don't think most people have ever heard of the string translate functions in the tutorial you found. I never have.

new_file_name = file_name
for char in '0123456789':
    new_file_name = new_file_name.replace(char, "")
os.rename(file_name, new_file_name)

Edit:

Based on your comments, you're going to want to do the following:

def rename_files(folder):

    #get file names from a folder
    file_list = os.listdir(folder)

    #for each file, rename filename to exclude any numbers
    for file_name in file_list:
        new_file_name = file_name.translate(str.maketrans('','','0123456789'))
        os.rename(file_name, new_file_name)
        print("renamed ", file_name, " to ", new_file_name)

rename_files('/Users/gazifah/Desktop/prank')