Do files get closed during an exception exit?

Question

Do open files (and other resources) get automatically closed when the script exits due to an exception?

I\'m wondering if I need to be closing my resources during my

Answer 1

No, they don't.

Use with statement if you want your files to be closed even if an exception occurs.

From the docs:

The with statement is used to wrap the execution of a block with methods defined by a context manager. This allows common try...except...finally usage patterns to be encapsulated for convenient reuse.

From docs:

 The with statement allows objects like files to be used in a way that ensures they are always cleaned up promptly and correctly.

with open("myfile.txt") as f:
    for line in f:
        print line,

After the statement is executed, the file f is always closed, even if a problem was encountered while processing the lines. Other objects which provide predefined clean-up actions will indicate this in their documentation.