Handling OSError exception in Python

# Importing os module
import os

# os.ttyname() method in Python is used to get the terminal 
# device associated with the specified file descriptor.
# and raises an exception if the specified file descriptor 
# is not associated with any terminal device.
print(os.ttyname(1))

# importing os module  
import os 
   
# create a pipe using os.pipe() method 
# it will return a pair of  
# file descriptors (r, w) usable for 
# reading and writing, respectively. 
r, w = os.pipe() 

# (using exception handling technique) 
# try to get the terminal device associated  
# with the file descriptor r or w 
try : 
    print(os.ttyname(r))  
    
except OSError as error : 
    print(error) 
    print("File descriptor is not associated with any terminal device")