Tutorials List

Description

The method chflags() sets the flags of path to the numeric flags. The flags may take a combination (bitwise OR) of the various values described below.

Note ? This method is available Python version 2.6 onwards. Most of the flags can be changed by super-user only.

Syntax

Following is the syntax for chflags() method ?

os.chflags(path, flags)

Parameters

  • path ? This is complete path of the directory to be changed to a new location.

  • flags ? The flags specified are formed by OR'ing the following values ?

    • so.UF_NODUMP ? Do not dump the file.

    • so.UF_IMMUTABLE ? The file may not be changed.

    • so.UF_APPEND ? The file may only be appended to.

    • so.UF_NOUNLINK ? The file may not be renamed or deleted.

    • so.UF_OPAQUE ? The directory is opaque when viewed through a union stack.

    • so.SF_ARCHIVED ? The file may be archived.

    • so.SF_IMMUTABLE ? The file may not be changed.

    • so.SF_APPEND ? The file may only be appended to.

    • so.SF_NOUNLINK ? The file may not be renamed or deleted.

    • so.SF_SNAPSHOT ? The file is a snapshot file.

Return Value

This method does not return any value.

Example

The following example shows the usage of chflags() method.

#!/usr/bin/python
import os
import stat

path = "/tmp/foo.txt"

# Set a flag so that file may not be renamed or deleted.
flags = os.SF_NOUNLINK
retval = os.chflags( path, flags)
print "Return Value: %s" % retval

When we run above program, it produces following result ?

Return Value : None