Fix Programming Errors, Explained

KeyError occurs when you access a dictionary key that doesn't exist.

IndexError occurs when you access a list index that doesn't exist.

AttributeError occurs when you access an attribute or method that doesn't exist on an object.

TypeError occurs when an operation is performed on an incompatible data type.

NameError occurs when you reference a variable or function that hasn't been defined.

ModuleNotFoundError occurs when Python can't find the module you're trying to import.

TypeError happens when you use an operation on a value of the wrong type.

NameError happens when you use a variable that hasn't been defined.

IndexError happens when you access a list index that doesn't exist.

ModuleNotFoundError happens when Python can't find the module you're trying to import.

KeyError happens when you access a dictionary key that doesn't exist.

ReferenceError occurs when you reference a variable that doesn't exist.

SyntaxError occurs when your code has invalid JavaScript syntax.

TypeError occurs when a value is not of the expected type.

TypeError happens when a value is not the expected type.

ReferenceError happens when you use a variable that doesn't exist.

SyntaxError happens when your code has invalid JavaScript syntax.

NullPointerException occurs when you try to use a null reference as if it were an object.

A segmentation fault occurs when your program accesses memory it shouldn't.