Handling OSError exception in Python Last Updated : 15 Jul, 2025 Comments Improve Suggest changes Like Article Like Report 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: 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)) Output : OSError: [Errno 25] Inappropriate ioctl for device We can handle an OSError exception using try...except statements. Python # 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 Comment More infoAdvertise with us Next Article Multiple Exception Handling in Python S shivanidhasmana96 Follow Improve Article Tags : Python Python-exceptions Practice Tags : python Similar Reads Handling NameError Exception in Python Prerequisites: Python Exception HandlingThere are several standard exceptions in Python and NameError is one among them. NameError is raised when the identifier being accessed is not defined in the local or global scope. General causes for NameError being raised are :1. Misspelled built-in functions 2 min read Python Exception Handling Python Exception Handling handles errors that occur during the execution of a program. Exception handling allows to respond to the error, instead of crashing the running program. It enables you to catch and manage errors, making your code more robust and user-friendly. Let's look at an example:Handl 7 min read Multiple Exception Handling in Python Given a piece of code that can throw any of several different exceptions, and one needs to account for all of the potential exceptions that could be raised without creating duplicate code or long, meandering code passages. If you can handle different exceptions all using a single block of code, they 3 min read Multiple Exception Handling in Python Given a piece of code that can throw any of several different exceptions, and one needs to account for all of the potential exceptions that could be raised without creating duplicate code or long, meandering code passages. If you can handle different exceptions all using a single block of code, they 3 min read How to handle KeyError Exception in Python In this article, we will learn how to handle KeyError exceptions in Python programming language. What are Exceptions?It is an unwanted event, which occurs during the execution of the program and actually halts the normal flow of execution of the instructions.Exceptions are runtime errors because, th 3 min read Handling EOFError Exception in Python In Python, an EOFError is raised when one of the built-in functions, such as input() or raw_input() reaches the end-of-file (EOF) condition without reading any data. This commonly occurs in online IDEs or when reading from a file where there is no more data left to read. Example:Pythonn = int(input( 4 min read Like