os.chmod method in Python

chmod() Function can be used for changing mode of path to passed numeric mode.
Syntax : os.chmod(path, mode, *, dir_fd=None, follow_symlinks=True)
Here mode can be a value defined in stat module and by changing mode value permissions of file can be changed.

Common mode values for os.chmod() Function

Mode Value	Description
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 test 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

Using os.chmod() Function for Changing File Permissions

Example 1

# Python program to explain os.chmod() method 
  
# importing necessary libraries 
import os, sys, stat 
  
# Set given file read by the owner. 
os.chmod("some file", stat.S_IREAD) 
print("File can be read only by owner.") 

Example 2

# Python program to explain os.chmod() method 
  
# importing necessary libraries 
import os, sys, stat 

# Set given file read by others. 
os.chmod("some file", stat.S_IROTH) 
print("File can be read by others") 

Example 3

# Python program to explain os.chmod() method 
  
# importing necessary libraries 
import os, sys, stat 
  
# Set given file written by the owner. 
os.chmod("some file", stat.S_IWRITE)
print("File can be written by owner only")

Example 4

# Python program to explain os.chmod() method 
  
# importing necessary libraries 
import os, sys, stat  
  
# Set given file executed by the owner. 
os.chmod("some file", stat.S_IXUSR) 
print("File can be written and executed only by the owner.")