Python os.fstat() Method

Python File(文件) 方法 Python OS File/Directory Methods

Overview

The os.fstat() method is used to return the status of the file descriptor fd, similar to stat().

Available on Unix and Windows.

The structure returned by the fstat method:

st_dev:Device information
st_ino:The i-node value of the file
st_mode:File information mask, containing file permission information and file type information (whether it is a regular file, a pipe file, or another file type)
st_nlink:Number of hard links
st_uid:User ID
st_gid:Group ID
st_rdev:Device ID (if the file is specified)
st_size:File size, in bytes
st_blksize:System I/O block size
st_blocks:The number of 512-byte blocks that make up the file
st_atime:Last access time of the file
st_mtime:Last modification time of the file
st_ctime:Modification time of the file status information (not the modification time of the file content)

Syntax

fstat()The method syntax is as follows:

os.fstat(fd)

Parameters

fd-- The file descriptor.

Return Value

Returns the status of the file descriptor fd.

Example

The following example demonstrates the use of the fstat() method:

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import os, sys

# 打开文件
fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT )

# 获取元组
info = os.fstat(fd)

print "文件信息 :", info

# 获取文件 uid
print "文件 UID :%d" % info.st_uid

# 获取文件 gid
print "文件 GID  :%d" % info.st_gid

# 关闭文件
os.close( fd)

The output of the above program is:

文件信息 : (33261, 3753776L, 103L, 1, 0, 0, 
            102L, 1238783197, 1238786767, 1238786767)
文件 UID :0
文件 GID :0