Python Tutorial ( PDFDrive )

os.chroot("/tmp/usr")
print "Changed root path successfully!!"
Let us compile and run the above program, this will produce the following result:
Changed root path successfully!!
os.close(fd)
Description
The method close() closes the associated with file descriptor fd.
Syntax
Following is the syntax for close() method:
os.close(fd);
Parameters
• fd -- This is the file descriptor of the file.
Return Value
This method does not return any value.
Example
The following example shows the usage of close() method.
#!/usr/bin/python
import os, sys
# Open a file
fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT )
# Write one string
os.write(fd, "This is test")
# Close opened file
os.close( fd )
print "Closed the file successfully!!"
Let us compile and run the above program, this will produce the following result:
Closed the file successfully!!
os.closerange(fd_low, fd_high)
Description
The method closerange() closes all file descriptors from fd_low (inclusive) to fd_high (exclusive), ignoring
errors.This method is introduced in Python version 2.6.
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