This method returns True if the file descriptor fd is open and connected to a tty(-like) device, else False.
Syntax:
os.isatty( fd )
Parameters:
Here is the detail of parameters:
fd: This is the file descriptor for which association needs to be checked.
Example:
#!/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")
# Now use isatty() to check the file.
ret = os.isatty(fd)
print "Returned value is: ", ret
# Close opened file
os.close( fd )