Doc/library/os.rst - Issue 10142: Support for SEEK_HOLE/SEEK_DATA

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Delta Between Two Patch Sets: Doc/library/os.rst

Issue 10142: Support for SEEK_HOLE/SEEK_DATA

Left Patch Set: Created 1 year ago

Right Patch Set: Created 1 year ago

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1 :mod:`os` --- Miscellaneous operating system interfaces	1 :mod:`os` --- Miscellaneous operating system interfaces

2 =======================================================	2 =======================================================

3	3

4 .. module:: os	4 .. module:: os

5 :synopsis: Miscellaneous operating system interfaces.	5 :synopsis: Miscellaneous operating system interfaces.

6	6

7	7

8 This module provides a portable way of using operating system dependent	8 This module provides a portable way of using operating system dependent

9 functionality. If you just want to read or write a file see :func:`open`, if	9 functionality. If you just want to read or write a file see :func:`open`, if

10 you want to manipulate paths, see the :mod:`os.path` module, and if you want to	10 you want to manipulate paths, see the :mod:`os.path` module, and if you want to

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3323	3323

3324 .. function:: urandom(n)	3324 .. function:: urandom(n)

3325	3325

3326 Return a string of n random bytes suitable for cryptographic use.	3326 Return a string of n random bytes suitable for cryptographic use.

3327	3327

3328 This function returns random bytes from an OS-specific randomness source. Th e	3328 This function returns random bytes from an OS-specific randomness source. Th e

3329 returned data should be unpredictable enough for cryptographic applications,	3329 returned data should be unpredictable enough for cryptographic applications,

3330 though its exact quality depends on the OS implementation. On a UNIX-like	3330 though its exact quality depends on the OS implementation. On a UNIX-like

3331 system this will query /dev/urandom, and on Windows it will use CryptGenRando m.	3331 system this will query /dev/urandom, and on Windows it will use CryptGenRando m.

3332 If a randomness source is not found, :exc:`NotImplementedError` will be raise d.	3332 If a randomness source is not found, :exc:`NotImplementedError` will be raise d.

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