Is it good practice to depend on python's with…as statement

Question

I\'m curious if it is considered safe or good practice to depend on python\'s with...as statement. For example when opening a file:

with open(\"myfile\",\"w\") a         


        

Answer 1

Yes, the with statement is better way. Since Python 2.5, the file object has been equipped with __enter__() and __exit__() methods. The __exit__() method closes the file object.

Python guarantees that it will call the __exit__() method, but there is not guarantee that the __exit__() method will close the resource, especially with 3rd party code. You need to manually verify that.