Python Tutorial ( PDFDrive )

Read String is : This is testPython is a great language.
Yeah its great!!
Current I/O pointer position :45
Closed the file successfully!!
os.fpathconf(fd, name)
Description
The method fpathconf() returns system configuration information relevant to an open file.This variable is very
similar to unix system call fpathconf() and accept the similar arguments.
Syntax
Following is the syntax for fpathconf() method:
os.fpathconf(fd, name)
Parameters
• fd -- This is the file descriptor for which system configuration information is to be returned.
• name -- This specifies the configuration value to retrieve; it may be a string, which is the name of a defined
system value; these names are specified in a number of standards (POSIX.1, Unix 95, Unix 98, and others).
The names known to the host operating system are given in theos.pathconf_names dictionary.
Return Value
This method returns system configuration information relevant to an open file.
Example
The following example shows the usage of fpathconf() method.
#!/usr/bin/python
import os, sys
# Open a file
fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT )
print "%s" % os.pathconf_names
# Now get maximum number of links to the file.
no = os.fpathconf(fd, 'PC_LINK_MAX')
print "Maximum number of links to the file. :%d" % no
# Now get maximum length of a filename
no = os.fpathconf(fd, 'PC_NAME_MAX')
print "Maximum length of a filename :%d" % no
# Close opened file
os.close( fd)
print "Closed the file successfully!!"
Let us compile and run the above program, this will produce the following result:
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