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Error Handling in Python
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Error Handling in Python

Error Handling in Python

1. Handling Structure
Concept of ErrorsDetect and CatchChallenge: Catch an ErrorSpecified ExceptionException AliasAdditional ElementsChallenge: Full Exception Handling
2. Exception Usage
Difference between Exceptions and ErrorsException Hierarchy

bookChallenge: Catch an Error

Now, let's handle the error for the first time.

You should handle this error:


              
123

            
from math import sqrt

sqrt(-4)  # ValueError
copy

Since finding the square root of a negative number is not possible (according to mathematical concepts), performing this operation in Python is not feasible. The interpreter takes this into account and raises a ValueError with the following message: math domain error.

Task

Now, you need to complete the following points:

  1. Define the code block where an error is expected.
  2. Catch this error and print the following string:
    "The ValueError was raised!"

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 3
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bookChallenge: Catch an Error

Now, let's handle the error for the first time.

You should handle this error:


              
123

            
from math import sqrt

sqrt(-4)  # ValueError
copy

Since finding the square root of a negative number is not possible (according to mathematical concepts), performing this operation in Python is not feasible. The interpreter takes this into account and raises a ValueError with the following message: math domain error.

Task

Now, you need to complete the following points:

  1. Define the code block where an error is expected.
  2. Catch this error and print the following string:
    "The ValueError was raised!"

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 3
toggle bottom row

bookChallenge: Catch an Error

Now, let's handle the error for the first time.

You should handle this error:


              
123

            
from math import sqrt

sqrt(-4)  # ValueError
copy

Since finding the square root of a negative number is not possible (according to mathematical concepts), performing this operation in Python is not feasible. The interpreter takes this into account and raises a ValueError with the following message: math domain error.

Task

Now, you need to complete the following points:

  1. Define the code block where an error is expected.
  2. Catch this error and print the following string:
    "The ValueError was raised!"

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Now, let's handle the error for the first time.

You should handle this error:


              
123

            
from math import sqrt

sqrt(-4)  # ValueError
copy

Since finding the square root of a negative number is not possible (according to mathematical concepts), performing this operation in Python is not feasible. The interpreter takes this into account and raises a ValueError with the following message: math domain error.

Task

Now, you need to complete the following points:

  1. Define the code block where an error is expected.
  2. Catch this error and print the following string:
    "The ValueError was raised!"

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 1. Chapter 3
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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