py3

for e in Exception.__subclasses__():
    print("{}: {}\n".format(e.__name__, e.__doc__))

TypeError: Inappropriate argument type.

StopAsyncIteration: Signal the end from iterator.__anext__().

StopIteration: Signal the end from iterator.__next__().

ImportError: Import can't find module, or can't find name in module.

OSError: Base class for I/O related errors.

EOFError: Read beyond end of file.

RuntimeError: Unspecified run-time error.

NameError: Name not found globally.

AttributeError: Attribute not found.

SyntaxError: Invalid syntax.

LookupError: Base class for lookup errors.

ValueError: Inappropriate argument value (of correct type).

AssertionError: Assertion failed.

ArithmeticError: Base class for arithmetic errors.

SystemError: Internal error in the Python interpreter.

Please report this to the Python maintainer, along with the traceback,
the Python version, and the hardware/OS platform and version.

ReferenceError: Weak ref proxy used after referent went away.

BufferError: Buffer error.

MemoryError: Out of memory.

Warning: Base class for warning categories.

Error: None