CODEWITHSUNDEEP
pythonoperating-system
Cosmos547
Cosmos547

Reputation: 109

What happens to opened files when my program crash?

When my program crashes with opened files what happens to them, are they automatically closed?

I'm aware the correct way is to use with but I'm curious what will happen when I don't. 

f = open('sample.txt', 'r')

# Example code that crashes the problem
a = 5 / 0

compared to

with open('sample.txt', 'r') as f:
    a = 5 / 0

If the opened files are automatically closed when the program crashes what is the benefit of using the with syntax?

Thank you in advance!

Upvotes: 1

Views: 1333

Answers (1)

eatmeimadanish
eatmeimadanish

Reputation: 3907

Using with closes the file automatically. Not using with and not explicitly closing your file means that as long as your application is running it will leave the file open.

If your program crashes the file will be released and the lock will expire. Regardless of with. If your program hangs however, and you did not leave the with statement, or simply used open, then you will keep the file open as long as your application is hung.

Upvotes: 2

Related Questions