How to Ignore an Exception and Proceed in Python
Last Updated :
26 Apr, 2025
There are a lot of times when in order to prototype fast, we need to ignore a few exceptions to get to the final result and then fix them later. In this article, we will see how we can ignore an exception in Python and proceed.
Demonstrate Exception in Python
Before seeing the method to solve it, let’s write a program to raise an error.
Python3
def divide(a, b):
return a/b
print(divide(4, 0))
|
Output:
Solution using the Try Except Method
In this example, you can see two cases of the Python Try-Except method. One which leads to an exception and another which will run without any exception. In the code, you can see how we are handling the error. (Here we are aware of the error we are going to encounter).
Example 1:
In the code, you can see how we are handling the error, Here we are aware of the error we are going to encounter.
Python3
def divide(a, b):
try:
result = a / b
except ZeroDivisionError:
result = 0
return result
print(divide(3, 0))
print(divide(4, 2))
|
Output:
0
2.0
Example 2:
In this example, let’s assume we are unaware of the error we are going to encounter. Here we can see that the specified error is not given. This might not be a good practice, because it becomes hard to trace the exact issue in the code.
Python3
def divide(a, b):
try:
result = a / b
except:
result = 0
return result
print(divide(3, 0))
print(divide(4, 2))
|
Output:
0
2.0
Solution Using Suppress Function
To ignore an exception and continue execution in Python using suppress, you can use the with a statement with the suppress function from the contextlib module. This allows you to specify the exception to be suppressed, and the with statement will automatically suppress the specified exception and continue execution after the with block.
Example 1:
In this example, the with statement is used to wrap the code that might throw an exception. The suppress function is used to specify the ZeroDivisionError exception to be suppressed. If the code inside the with block raises a ZeroDivisionError, it will be suppressed and execution will continue after the with block.
Python3
from contextlib import suppress
with suppress(ZeroDivisionError):
1 / 0
print("After the with block")
|
Output:
After the with block
Example 2:
In this example, the try…except statement is used to wrap the with a block that uses suppress to ignore a ZeroDivisionError exception. The try…except statement also includes an except block that catches ValueError exceptions. If a ValueError is raised by the code inside the try block, it will be caught by the except block and handled by printing the error message. However, since the with block uses suppress to ignore the ZeroDivisionError that is raised by the code, this exception will not be handled and execution will continue after the try…except block.
Python3
from contextlib import suppress
try:
with suppress(ZeroDivisionError):
1 / 0
except ValueError as e:
print("ValueError:", e)
print("After the try-except block")
|
Output:
After the try-except block
Conclusion
It is generally not recommended to use this approach to ignore exceptions. Instead, you should handle the exceptions properly by providing appropriate actions in the except block. Ignoring exceptions can lead to unexpected behavior and can make it difficult to debug your code. It is better to handle exceptions explicitly so that you can control how your program responds to them.
Similar Reads
How to pass argument to an Exception in Python?
There might arise a situation where there is a need for additional information from an exception raised by Python. Python has two types of exceptions namely, Built-In Exceptions and User-Defined Exceptions.Why use Argument in Exceptions? Using arguments for Exceptions in Python is useful for the fol
2 min read
How to log a Python exception?
To log an exception in Python we can use a logging module and through that, we can log the error. The logging module provides a set of functions for simple logging and the following purposes DEBUGINFOWARNINGERRORCRITICALLog a Python Exception Examples Example 1:Logging an exception in Python with an
2 min read
How to Catch Multiple Exceptions in One Line in Python?
There might be cases when we need to have exceptions in a single line. In this article, we will learn about how we can have multiple exceptions in a single line. We use this method to make code more readable and less complex. Also, it will help us follow the DRY (Don't repeat code) code method. Gene
2 min read
How to catch a NumPy warning like an exception in Python
An N-dimensional array that is used in linear algebra is called NumPy. Whenever the user tries to perform some action that is impossible or tries to capture an item that doesn't exist, NumPy usually throws an error, like it's an exception. Similarly, in a Numpy array, when the user tries to perform
3 min read
Test if a function throws an exception in Python
The unittest unit testing framework is used to validate that the code performs as designed. To achieve this, unittest supports some important methods in an object-oriented way: test fixturetest casetest suitetest runner A deeper insight for the above terms can be gained from https://www.geeksforgeek
4 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
How to handle a Python Exception in a List Comprehension?
In Python, there are no special built-in methods to handle exceptions in the list comprehensions. However, exceptions can be managed using helper functions, try-except blocks or custom exception handling. Below are examples of how to handle common exceptions during list comprehension operations: Han
3 min read
How to Print Exception Stack Trace in Python
In Python, when an exception occurs, a stack trace provides details about the error, including the function call sequence, exact line and exception type. This helps in debugging and identifying issues quickly. Key Elements of a Stack Trace:Traceback of the most recent callLocation in the programLine
3 min read
Handling OSError exception in Python
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
2 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