Python is a high-level programming language that is widely used for developing various applications. One of the most important features of Python is its error handling mechanism. Python Try...Except is a powerful tool that allows developers to handle errors and exceptions in their code.
Python Try...Except is a block of code that is used to catch and handle exceptions that occur during the execution of a program. The Try block contains the code that might raise an exception, and the Except block contains the code that handles the exception.
The syntax for Python Try...Except is as follows:
<try>
# code that might raise an exception
<except> ExceptionType:
# code to handle the exception
Here, the Try block contains the code that might raise an exception, and the Except block contains the code that handles the exception. The ExceptionType is the type of exception that is being handled.
Let's take a look at some examples of Python Try...Except:
<try>
x = 10 / 0
<except> ZeroDivisionError:
print("Cannot divide by zero")
In this example, the Try block contains the code that might raise a ZeroDivisionError. If this error occurs, the Except block will be executed, and the message "Cannot divide by zero" will be printed.
<try>
file = open("myfile.txt", "r")
<except> FileNotFoundError:
print("File not found")
In this example, the Try block contains the code that might raise a FileNotFoundError. If this error occurs, the Except block will be executed, and the message "File not found" will be printed.
<try>
x = 10 / 0
file = open("myfile.txt", "r")
<except> ZeroDivisionError:
print("Cannot divide by zero")
<except> FileNotFoundError:
print("File not found")
In this example, the Try block contains the code that might raise a ZeroDivisionError or a FileNotFoundError. If either of these errors occurs, the appropriate Except block will be executed.
Python Try...Except is a powerful tool that allows developers to handle errors and exceptions in their code. By using Try...Except, developers can ensure that their programs continue to run even if errors occur.