Trying to rename files in python but getting errors-CodePudding

I am trying to write a code to rename files to numbers but i keep getting this error FileNotFoundError: [WinError 3] The system cannot find the path specified: 'Crypto Hood #100.jpg' -> '' this is my code

os.chdir ('C:\\Users\\win 10\\Downloads\\Crypto Hood')
for filename in os.listdir('.'):
    if filename.startswith('Crypto Hood #'):
        os.rename(filename, filename[100:])

CodePudding user response：

If we take:

filename = "Crypto Hood #100.jpg"
new_filename = filename[100:]

then new_filename would be an empty string ('') since filename only has 20 characters and you are slicing out the first 100. Empty strings are not valid filenames in Windows, so you get this error. I think you may be confused about how slicing works, so refer the doc: https://python-reference.readthedocs.io/en/latest/docs/brackets/slicing.html

CodePudding user response：

I suspect you wanted to do this:

os.chdir ('C:\\Users\\win 10\\Downloads\\Crypto Hood')
for filename in os.listdir('.'):
    if filename.startswith('Crypto Hood #'):
        newname = filename.split('#')[1]
        os.rename(filename, newname)