Python os.lchflags() Method

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Python method lchflags() sets the flags of path to the numeric flags. This method does not follow symbolic links unlike chflags() method.

Here, flags may take a combination (bitwise OR) of the following values (as defined in the stat module) −

• UF_NODUMP − Do not dump the file.

• UF_IMMUTABLE − The file may not be changed.

• UF_APPEND − The file may only be appended to.

• UF_NOUNLINK − The file may not be renamed or deleted.

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

• SF_ARCHIVED − The file may be archived.

• SF_IMMUTABLE − The file may not be changed.

• SF_APPEND − The file may only be appended to.

• SF_NOUNLINK − The file may not be renamed or deleted.

• SF_SNAPSHOT − The file is a snapshot file.

Note − The Python os.lchflags() method is available only on UNIX platforms.

Syntax

Syntax of os.getcwdu() method is shown below −

os.lchflags(path, flags)

Parameters

The Python os.lchflags() method accepts the following parameters −

• path − This is the file path for which flags to be set.

• flags − This could be a combination (bitwise OR) of the above defined flags values.

Return Value

The os.lchflags() method in Python does not return any value.

Example

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

#!/usr/bin/python

import os, sys

# Open a file
path = "/var/www/html/foo.txt"
fd = os.open( path, os.O_RDWR|os.O_CREAT )

# Close opened file
os.close( fd )

# Now change the file flag.
ret = os.lchflags(path, os.UF_IMMUTABLE )

print ("Changed file flag successfully!!")

When we run above program, it produces following result −

Changed file flag successfully!!