How to read and write huge binary files

[Lad]

What is a good way to read binary data from HUGE file and write it
to another file?
Thanks for help
La.

[Marc 'BlackJack' Rintsch]

In <11**********************@l53g2000cwa.googlegroups .com>, Lad wrote:

What is a good way to read binary data from HUGE file and write it
to another file?

What about `shutil.copy()`?

Ciao,
Marc 'BlackJack' Rintsch

[Gabriel Genellina]

"Lad" <py****@hope.czescribió en el mensaje
news:11**********************@l53g2000cwa.googlegr oups.com...

What is a good way to read binary data from HUGE file and write it
to another file?

Without processing the data read? shutil.copy2 or similar
Else, a lot of applications can follow the pattern read-process-write: read
a logical block, process, write the output; where "logical block" depends on
the application: a record, a frame, a chunk...

--
Gabriel Genellina

[Tim Roberts]

"Lad" <py****@hope.czwrote:

>
What is a good way to read binary data from HUGE file and write it
to another file?

How huge? I regularly process 100-megabyte MPEG files in Python, both by
reading the whole thing in as a string, and by using "mmap" to map the file
into memory.
--
Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.