Python3 os.pathconf() Method
Python3 OS File/Directory Methods
Overview
The os.pathconf() method is used to return system configuration information for an open file.
Available on Unix platforms.
Syntax
fpathconf()The method syntax is as follows:
os.fpathconf(fd, name)
Parameters
fd-- file descriptor
name-- the value of the system configuration to retrieve. It may be a string defining a system value; these names are specified in many standards (POSIX.1, Unix 95, Unix 98, and others). Some platforms also define additional names. These names are in the pathconf_names dictionary on the host operating system. For configuration variables not in pathconf_names, passing a number as the name is also acceptable.
Return Value
Returns the system information of the file.
Example
The following example demonstrates the use of the fpathconf() method:
#!/usr/bin/python3
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 output of executing the above program is:
File closed successfully!!Other Extensions