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Python os.lchflags() Method

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 of os.getcwdu() method is shown below −

os.lchflags(path, flags)

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.

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

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!!

python_files_io.htm

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