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# Python Standard Exceptions

Here is a list all the standard Exceptions available in Python:

EXCEPTION NAME | DESCRIPTION
--- | ---
Exception | Base class for all exceptions
StopIteration | Raised when the next() method of an iterator does not point to any object.
SystemExit | Raised by the sys.exit() function.
StandardError | Base class for all built-in exceptions except StopIteration and SystemExit.
ArithmeticError | Base class for all errors that occur for numeric calculation.
OverflowError | Raised when a calculation exceeds maximum limit for a numeric type.
FloatingPointError | Raised when a floating point calculation fails.
ZeroDivisonError | Raised when division or modulo by zero takes place for all numeric types.
AssertionError | Raised in case of failure of the Assert statement.
AttributeError | Raised in case of failure of attribute reference or assignment.
EOFError | Raised when there is no input from either the raw_input() or input() function and the end of file is reached.
ImportError | Raised when an import statement fails.
KeyboardInterrupt | Raised when the user interrupts program execution, usually by pressing Ctrl+c.
LookupError | Base class for all lookup errors.
IndexError | Raised when an index is not found in a sequence.
KeyError | Raised when the specified key is not found in the dictionary.
NameError | Raised when an identifier is not found in the local or global namespace.
UnboundLocalError | Raised when trying to access a local variable in a function or method but no value has been assigned to it.
EnvironmentError | Base class for all exceptions that occur outside the Python environment.
IOError | Raised when an input/ output operation fails, such as the print statement or the open() function when trying to open a file that does not exist.
OSError | Raised for operating systemrelated errors.
SyntaxError | Raised when there is an error in Python syntax.
IndentationError | Raised when indentation is not specified properly.
SystemError | Raised when the interpreter finds an internal problem, but when this error is encountered the Python interpreter does not exit.
SystemExit | Raised when Python interpreter is quit by using the sys.exit() function. If not handled in the code, causes the interpreter to exit.
TypeError | Raised when an operation or function is attempted that is invalid for the specified data type.
ValueError | Raised when the built-in function for a data type has the valid type of arguments, but the arguments have invalid values specified.
RuntimeError | Raised when a generated error does not fall into any category.
NotImplementedError | Raised when an abstract method that needs to be implemented in an inherited class is not actually implemented.

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