blank lines in file after sorting content of a text file in python

Question

I have this small script that sorts the content of a text file

# The built-in function `open` opens a file and returns a file object.

# Read mode opens a fi         


        

Answer 1

The reason it sorts the blank lines is that they are there. A blank line is an empty string followed by \n (or \r\n or \r, depending on the OS). Perfectly sortable.

I should like to note that "try:" nested into a "try:... except" block is a bit ugly, and I'd close the file after reading, for style's sake.