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Python 3 - os.chflags() Method
Description
The method chflags() sets the flags of path to the numeric flags. The flags may take a combination (bitwise OR) of the various values described below.
Note − This method is available Python version 2.6 onwards. Most of the flags can be changed by super-user only.
Syntax
Following is the syntax for chflags() 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 −
os.UF_NODUMP − Do not dump the file.
os.UF_IMMUTABLE − The file may not be changed.
os.UF_APPEND − The file may only be appended to.
os.UF_NOUNLINK − The file may not be renamed or deleted.
os.UF_OPAQUE − The directory is opaque when viewed through a union stack.
os.SF_ARCHIVED − The file may be archived.
os.SF_IMMUTABLE − The file may not be changed.
os.SF_APPEND − The file may only be appended to.
os.SF_NOUNLINK − The file may not be renamed or deleted.
os.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/python3
import os
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)
Result
When we run the above program, it produces the following result −
Return Value : None