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Python os.lchmod() Method

Python method lchmod() changes the mode of path to the numeric mode. If path is a symlink, this affects the symlink rather than the target.

The mode may take one of the following values or bitwise ORed combinations of them −

• stat.S_ISUID − Set user ID on execution.

• stat.S_ISGID − Set group ID on execution.

• stat.S_ENFMT − Record locking enforced.

• stat.S_ISVTX − Save text image after execution.

• stat.S_IREAD − Read by owner.

• stat.S_IWRITE − Write by owner.

• stat.S_IEXEC − Execute by owner.

• stat.S_IRWXU − Read, write, and execute by owner.

• stat.S_IRUSR − Read by owner.

• stat.S_IWUSR − Write by owner.

• stat.S_IXUSR − Execute by owner.

• stat.S_IRWXG − Read, write, and execute by group.

• stat.S_IRGRP − Read by group.

• stat.S_IWGRP − Write by group.

• stat.S_IXGRP − Execute by group.

• stat.S_IRWXO − Read, write, and execute by others.

• stat.S_IROTH − Read by others.

• stat.S_IWOTH − Write by others.

• stat.S_IXOTH − Execute by others.

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

Below is the syntax for os.lchmod() method −

os.lchmod(path, mode)

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

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

• mode − This may take one of the above mentioned values or bitwise ORed combinations of them.

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

The following example shows the usage of lchmod() 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 mode.
# Set a file execute by group.
os.lchmod( path, stat.S_IXGRP)

# Set a file write by others.
os.lchmod("/tmp/foo.txt", stat.S_IWOTH)

print ("Changed mode successfully!!")

When we run above program, it produces following result −

Changed mode successfully!!

python_files_io.htm

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