ospathsplitoriginal_file_path1-4

The expression os.path.split(original_file_path)[1][:-4] will return the filename of the file at original_file_path without the file extension.

Here's a breakdown of what the expression does:

1. os.path.split(original_file_path) splits the original_file_path into a directory path and the filename. It returns a tuple containing both values.

   • os.path.split('/path/to/file.txt') will return ('/path/to', 'file.txt').

2. [1] accesses the second element of the tuple, which is the filename.

   • ('/path/to', 'file.txt')[1] will return 'file.txt'.

3. [:-4] slices the filename string to remove the last 4 characters (which would be the file extension).

   • 'file.txt'[:-4] will return 'file'.

So, the overall expression os.path.split(original_file_path)[1][:-4] will return the filename without the file extension