Python Os.fstat() Method

Description

Python method fstat() returns information about a file associated with the fd. Here is the structure returned by fstat method:

• st_dev − ID of device containing file
• st_ino − inode number
• st_mode − protection
• st_nlink − number of hard links
• st_uid − user ID of owner
• st_gid − group ID of owner
• st_rdev − device ID (if special file)
• st_size − total size, in bytes
• st_blksize − blocksize for filesystem I/O
• st_blocks − number of blocks allocated
• st_atime − time of last access
• st_mtime − time of last modification
• st_ctime − time of last status change

Syntax

Following is the syntax for fstat() method −

os.fstat(fd)

Parameters

• fd − This is the file descriptor for which system information is to be returned.

Return Value

This method returns information about a file associated with the fd.

Example

The following example shows the usage of chdir() method:

#!/usr/bin/python

import os, sys

# Open a file
fd = os.open( "foo.txt", os.O_RDWR'os.O_CREAT )

# Now get  the touple
info = os.fstat(fd)

print "File Info :", info

# Now get uid of the file
print "UID of the file :%d" % info.st_uid

# Now get gid of the file
print "GID of the file :%d" % info.st_gid

# Close opened file
os.close( fd)

When we run the above program, it produces the following result:

File Info : (33261, 3753776L, 103L, 1, 0, 0, 
            102L, 1238783197, 1238786767, 1238786767)
UID of the file :0
GID of the file :0

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