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Python os.pathconf () method

Python File (File) method Python OS file / directory methods

Outline

os.pathconf () method returns an open file system configuration information.

Available under Unix platforms.

grammar

fpathconf () method syntax is as follows:

os.fpathconf(fd, name)

parameter

  • name - the file descriptor

  • name - value retrieval system configuration, it may be a string of defined system values, these names specified in many standards (POSIX.1, Unix 95, Unix 98 , and others).Some platforms define additional names. These names are in the main operating system on pathconf_names dictionary. For not pathconf_names configuration variables, passing a number as a name, it is also acceptable.

    • return value

    Returns system information file.

    Examples

    The following example demonstrates fpathconf () method of use: 

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

import os, sys

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

print "%s" % os.pathconf_names

# 获取文件最大连接数
no = os.fpathconf(fd, 'PC_LINK_MAX')
print "Maximum number of links to the file. :%d" % no

# 获取文件名最大长度
no = os.fpathconf(fd, 'PC_NAME_MAX')
print "Maximum length of a filename :%d" % no

# 关闭文件
os.close( fd)

print "关闭文件成功!!"

    The above program output is: 

    关闭文件成功!!

    Python File (File) method Python OS file / directory methods