`f._CHUNK_SIZE = 5` is modifying Python's internal variables - don't do that
google buffering to find out what it is
buffering is how much Python will keep in memory
f.read(1) will actually read `buffering` bytes of memory so that when you read
later, the reading can be done from memory
On Friday, 24 August 2012 10:51:36 UTC+5:30, Marco wrote:
> On 08/24/2012 06:35 AM, Marco wrote:
>
> > Please, can anyone explain me the meaning of the
>
> > "buffering > 1" in the built-in open()?
>
> > The doc says: "...and an integer > 1 to indicate the size
>
> > of a fixed-size chunk buffer."
>
>
>
> Sorry, I get it:
>
>
>
> >>> f = open('myfile', 'w', buffering=2)
>
> >>> f._CHUNK_SIZE = 5
>
> >>> for i in range(6):
>
> ... n = f.write(str(i))
>
> ... print(i, open('myfile').read(), sep=':')
>
> ...
>
> 0:
>
> 1:
>
> 2:
>
> 3:
>
> 4:
>
> 5:012345
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