Understanding “Invalid literal for int with base 10” Error in Python

Python is a popular programming language that has become the go-to choice for many developers due to its easiness, readability, and flexibility. However, like this any other programming language python is not perfect, errors can occur during coding. One of the most common errors in Python is the “Invalid literal for int with base 10” error. In this article, we’ll explore what this error means, why it occurs, and how to rectify this and fix it.

What is the “Invalid literal for int with base 10” error?

The “invalid literal for int with base10” error occurs frequently in Python when the code attempts to convert a string value to an integer. value, but the string contains characters that are not recognized as numeric digits. In additional words, the error message shows that the code is trying to convert a non-numeric string to an integer value.

Why is the error “Invalid literal for int with base 10” displayed?

The error can occur when the string contains non-numeric characters, such as letters or symbols. For example, if you try to convert the string “hello” to an integer value, you will get the “Invalid literal for int with base10” error.

Another reason this error can occur is that the string value passed to the int() function has leading or trailing white spaces. In this case, the int() function cannot recognize the string value as a valid integer, and it raises the “Invalid literal for int with base10” error.

Why is the error message “Invalid literal for int with base 10” displayed?

There are a number of solutions to the “Invalid literal for int with base10” error in Python.

Check if the string contains only numeric characters: Before converting a string to an integer value, check if the string contains only numeric characters. You can use the isdigit() function to check if the string contains only digits. If the string contains non-numeric characters, remove them before converting the string to an integer value.

Remove leading and trailing whitespaces: If the string value has leading or trailing white spaces, remove them before passing the string value to the int() function. You can use the strip() function to remove leading and trailing whitespaces.

Use exception handling: Another way to handle the “Invalid literal for int with base 10” error is to use exception handling. You can use a try-except block to capture errors and gracefully handle them.. For example, you can print an error message or prompt the user to enter a valid integer value.

Conclusion

“Invalid literal for int with base10” is a common Python error that occurs when a non-numeric expression is converted to an integer value.. This error can be fixed by ensuring that the string value contains only numeric characters or removing leading and trailing white spaces. Using exception handling is another way to handle this error gracefully. By understanding the causes and solutions of this error, you can write more robust and error-free Python code.