![]() Assertion Error – Occurs when there is assert statement failure.Floating-point Error – Happens when a floating-point calculation fails.Arithmetic Error – Occurs when numeric calculations fail.IOError – Developers often encounter this error when an input/output operation fails.ValueError – Occurs when the built-in function for a data type has the valid type of arguments, but the arguments have invalid values.IndentationError – Happens when indentation is not specified correctly.For instance, accessing the 6th index when the length of the list is only five(5). Inde圎rror – You will get this error when an index is not found in a sequence.It then creates and prints a traceback of that error with details on why the error happened. Whenever a runtime error occurs, Python creates an exception object. Here is how Python treats the above-mentioned errors:įileNotFoundError: No such file or directory: ‘stack.txt’ Further, when you try to import a module that doesn’t exist, you will get ImportError. When you open a file(read) that doesn’t exist, you will receive FileNotFoundError. For example, when you try to divide a number by zero, you will get a ZeroDivisionError. Developers are now dealing with logical errors, also known as exceptions.Įxceptions are errors that occur at runtime. Unfortunately, it is no longer the typical syntax error. The program becomes a robust machine learning model, but during execution, Python throws up an unexpected error. In most cases, a Python developer writes an impressive piece of code that is ready to execute. ![]() Thus, it points out that there is something wrong inside the array. In the example above, the interpreter encounters an invalid syntax inside an array called ages. So, when you get a Synta圎rror traceback, it means that you should visually inspect whether the interpreter is pointing to the right error. It only points to where it first noticed the problem. The Python interpreter only attempts to locate where the invalid syntax is. Try to run this code, and you will get a traceback:Īs you notice, the traceback message didn’t pinpoint the exact line where the syntax error occurs. Upon inspection, you can see an invalid syntax on the second entry, yoyo, inside the array with a missing comma. Then we will add another variable tomtom: This is a simple code with no syntax error. Python syntax errors are caused by not following the proper structure (syntax) of the language. So, to establish the difference between errors and exceptions, there are two types of errors:įirst, let’s examine the syntax errors. In the case of Python application development, a python program terminates as soon as it encounters an unhandled error. Some developers still fail to distinguish between errors and exceptions. Developers often categorize exceptions as coding mistakes that lead to errors when running the program. One of the struggles developers face is how to catch all Python exceptions.
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