Python Os.chflags() Method

Description

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

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

Syntax

Following is the syntax for chdir() 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 the above program, it produces the following result:

Return Value : None

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