AttributeError: "That object doesn't know how do to what you asked it to do"

In OOP, objects have "attributes" - things that they're aware of, and/or know how to do. In terms of Python, attributes are an objects properties and the methods defined by its class. An AttributeError will be thrown when you ask an object to do something or access something that isn't in its class definition.

Example 1: Attribute Error: '[Object X] has no attribute [attribute Y] - https://www.codeskulptor.org/#user29_JWjKm5ZQV4_6.py
Example 2: Same as Example 1, but with an explicit class definition - https://www.codeskulptor.org/#user29_Qvjnv5BNTg_0.py

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TokenError: "You probably forgot to close a bracket." *

Very simply, tokens are things that stand for other things - sort of like variables, except they're used at a more structural level. Some examples of tokens are EOF (End Of File) and EOL (End Of Line). These are the two most common ones you will come across in Python, but they are used everywhere in programming. The TokenErrors that you will see in this course are usually solved by remembering to close your brackets. See the example for a more in-depth explanation of why this is.

Example 1: TokenError: EOF in multi-line statement - https://www.codeskulptor.org/#user29_TwsBlWnsiG_3.py

*Not actually what it means - but a more detailed explanation is more appropriate for other courses, and this is the most common cause of TokenErrors in this class.

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ValueError: "There's something wrong with the value of one of those arguments (but the type is ok)."

A ValueError is raised when a function receives an argument that looks ok on the surface (e.g., it receives a character, and it was looking for a character), but the value of that argument is unexpected (e.g., the function was only built to handle digits, and it received a letter 'a'). This type of error can be solved by checking the documentation for whatever function you're trying to use,
and making sure that whatever you put inside the parentheses, the function was built to handle it.

Example 1: ValueError: invalid literal for int() with base 10: ' ' - https://www.codeskulptor.org/#user29_v7yqnKyAPa_2.py

IndentationError: "Your code blocks aren't all indented to the proper levels."

This is a type of Syntax Error. See Syntax Errors, example # 5.

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Miscellaneous section - these errors are either self-explanatory or not common in the level of programming done in IIPP
OverflowError - caused by trying to store, for example, a long inside an int. A long has too many bytes to fit inside the int data type
ZeroDivisionError - you guessed it - you're trying to divide by zero somewhere
ImportError - caused by trying to import a module that doesn't exist. Check your spelling.

JavaScript section - these are not Python errors. They are related to your browser, not your code.
HierarchyError - Internet Explorer is not supported by CodeSkulptor. Use Chrome or Firefox.