Handling OSError exception in Python
Last Updated :
08 Jun, 2022
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Let us see how to handle OSError Exceptions in Python. OSError is a built-in exception in Python and serves as the error class for the os module, which is raised when an os specific system function returns a system-related error, including I/O failures such as "file not found" or "disk full".
Below is an example of OSError:
# 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))
Output :
OSError: [Errno 25] Inappropriate ioctl for device
We can handle an OSError exception using try...except statements.
# 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")
Output :
[Errno 25] Inappropriate ioctl for device File descriptor is not associated with any terminal device
