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Python Programming On Win32
book

Python Programming On Win32

by Andy Robinson, Mark Hammond
January 2000
Intermediate to advanced content levelIntermediate to advanced
672 pages
21h 46m
English
O'Reilly Media, Inc.
Content preview from Python Programming On Win32

File Descriptor Operations

These functions operate on I/O streams referred to with file descriptors:

close( fd )

Closes file descriptor fd. Availability: Macintosh, Unix, Windows.

This function is intended for low-level I/O and must be applied to a file descriptor as returned by open() or pipe(). To close a file object returned by the built-in function open(), by popen(), or fdopen(), use its close() method.

dup( fd )

Returns a duplicate of file descriptor fd. Availability: Macintosh, Unix, Windows.

dup2( fd , fd2 )

Duplicates file descriptor fd to fd2, closing the latter first if necessary. Availability: Unix, Windows.

fstat( fd )

Returns status for file descriptor fd , like stat(). Availability: Unix, Windows.

fstatvfs( fd )

Returns information about the filesystem containing the file associated with file descriptor fd , like statvfs(). Availability: Unix.

ftruncate( fd, length )

Truncates the file corresponding to file descriptor fd , so that it is length bytes in size. Availability: Unix.

lseek( fd , pos , how )

Sets the current position of file descriptor fd to position pos, modified by how : to set the position relative to the beginning of the file; 1 to set it relative to the current position; and 2 to set it relative to the end of the file. Availability: Macintosh, Unix, Windows.

open( file, flags[, mode] )

Opens the file file and sets various flags according to flags and, possibly, its mode according to mode. The default mode is 0777 (octal), and the current umask value ...

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Publisher Resources

ISBN: 1565926218Supplemental ContentErrata Page