CODEWITHSUNDEEP
python
Ord
Ord

Reputation: 5843

Python file handling - will buffer definitely be flushed before exit?

Suppose I have the following python script:

with open(fileName, "a") as myfile:
    myfile.write(myData)

I don't really know how file buffers work, but I am aware of the fact that characters may queue up and not actually be written to file immediately.

My question is: once the python script ends, will the file DEFINITELY contain myData? I.e., if I'm calling this from the command line as python script.py, then when I get control again at the command line, will the file reflect my changes 100% of the time?

If it matters (maybe this is specific to the filesystem used?), I'll be running this on a 64-bit Windows machine (running Windows 7).

Upvotes: 2

Views: 1251

Answers (1)

cmd
cmd

Reputation: 5830

Yes. It is actually flushed on close which is guaranteed to happen when you leave your with block.

Upvotes: 3

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