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Python Built-in Exceptions

Python Built-in Exceptions

There are several built-in exceptions in Python that are raised when errors occur.

Syntax:

Exception Description
ArithmeticError It defines when an error occurs in numeric calculations
AssertionError Error raised when an assert statement fails
AttributeError It defines an error when attribute reference or assignment fails
Exception It is used to define a Base class for all exceptions
EOFError It is used to raise an error when the input() method hits an "end of file" condition (EOF)
FloatingPointError This error raised when a floating point calculation fails
GeneratorExit Raised an error when a generator is closed (with the close() method)
ImportError when an imported module does not exist then, it raised an error
IndentationError It Raised an error when indendation is not correct
IndexError This Exception Raised when an index of a sequence does not exist
KeyError It defines an error when a key does not exist in a dictionary
KeyboardInterrupt This exception raised when the user presses Ctrl+c, Ctrl+z or Delete
LookupError This exception raised when errors raised cant be found
MemoryError An error raised when a program runs out of memory
NameError It Raised when a variable does not exist
NotImplementedError It defines an error raised when an abstract method requires an inherited class to override the method
OSError It Raised when a system related operation causes an error
OverflowError It Raised an error when the result of a numeric calculation is too large
ReferenceError This Exception Raised an error when a weak reference object does not exist
RuntimeError It Raised when an error occurs that do not belong to any specific expections
StopIteration It Raised an iterator has no further values
SyntaxError It defines an error raised when a syntax error occurs
TabError It Raised when indentation consists of tabs or spaces
SystemError It Raised when a system error occurs
SystemExit This exception Raised when the sys.exit() function is called
TypeError This error is Raised when two different types are combined
UnboundLocalError This error is Raised when a local variable is referenced before assignment
UnicodeError It Raised an error when a unicode problem occurs
UnicodeEncodeError It raised an error when a unicode encoding problem occurs
UnicodeDecodeError This exception Raised an error when a unicode decoding problem occurs
UnicodeTranslateError It defines an error Raised when a unicode translation problem occurs
ValueError It Raised when there is a wrong value in a specified data type
ZeroDivisionError It Raised an error when the second operator in a division is zero

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