#python Exception handling is a method of handling errors that occur while a program is running. Exception handling allows you to catch, handle, and throw exceptions so that your program can continue running without crashing.
Exceptions inPython are thrown using the r<strong class="keylink">ai</strong>se
keyword. You can use the try
and except
statements to catch and handle exceptions.
try: # code that may raise an exception except Exception as e: # code to handle the exception
try
statement defines a block of code in which an exception may be thrown. The except
statement defines one or more blocks of code for catching and handling exceptions.
except
The statement can catch specific types of exceptions or all types of exceptions. For example, the following code catches all types of exceptions:
try: # code that may raise an exception except: # code to handle the exception
You can also use the else
statement to specify code to be executed if no exception is thrown. For example, the following code prints "No exception was raised." when no exception was raised:
try: # code that may raise an exception except: # code to handle the exception else: print("No exception was raised.")
Finally, you can also use the finally
statement to specify code that should be executed regardless of whether an exception is thrown. For example, the following code always closes the file before the program exits:
try: # code that may raise an exception finally: file.close()
Exception handling is an important tool in Python that can be used to make your code more reliable. By using exception handling, you can catch, handle, and throw exceptions so that your program can continue running without crashing.
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