Exception Handling | Try | Except | Else | Finally | Coding Winds

EXCEPTION HANDLING

Hello guys, we here bring another blog which will help us in our competitive programming the most.

The topic is, “exception handling”. Exceptions in python are objects that represent errors; they can be raised by passing invalid arguments to function or performing certain illegal operations or by explicitly.

It actually returns back the information about the error and how it was raised.

A basic example,

Output

We handle the exception using 4 statements, they go as:

a)     Try: This statement lets you test a code for errors.

b)     Except: This statement lets you handle the errors. This block is required even if the code passes

c)      Else: This statement will work if the code doesn’t have any error.

d)     Finally: This statement will be executed regardless of the presence of errors

Take a look at another example,

Output

Exception handling is very important when it comes to files in python.

Check this out,

Raise an Exception

As a programmer we can choose to throw an exception if conditions occur.

The keyword used is, raise.

Look at the example,

Output

Similarly we can define what type of error we can throw.

Look at the code below,

Output

 

Hello Python people, for this blog we have taken help from the book Python : The Complete Reference.

Hope all your doubts regarding this are clear now.

If you still have any doubt on this topic then do come to us via email "sophomoretechs@gmail.com" or via Instagram "@coding.winds".

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