38 - Custom Errors

Raising Custom errors

In python, we can raise custom errors by using the raise keyword. 

salary = int(input("Enter salary amount: "))
if not 2000 < salary < 5000:
    raise ValueError("Not a valid salary")

sometimes we may need to create our own custom exceptions that serve our purpose.
like if we wanna stop function in an error.

Defining Custom Exceptions

In Python, we can define custom exceptions by creating a new class that is derived from the built-in Exception class.

Here's the syntax to define custom exceptions:

class CustomError(Exception):
  # code ...
  pass

try:
  # code ...

except CustomError:
  # code...

This is useful because sometimes we might want to do something when a particular exception is raised. For example, sending an error report to the admin, calling an api, etc.

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