exception UnicodeEncodeError Raised when a Unicode-related error occurs during encoding. It is a subclass of UnicodeError

strerror The corresponding error message, as provided by the operating system. It is formatted by the C functions perror()

exception UnicodeError Raised when a Unicode-related encoding or decoding error occurs. It is a subclass of ValueError

exception FutureWarning Base class for warnings about constructs that will change semantically in the future.

exception EnvironmentError

exception IndexError Raised when a sequence subscript is out of range. (Slice indices are silently truncated to fall in the

exception AssertionError Raised when an assert statement fails.

exception TimeoutError Raised when a system function timed out at the system level. Corresponds to errno ETIMEDOUT

exception OverflowError Raised when the result of an arithmetic operation is too large to be represented. This cannot occur

exception ReferenceError This exception is raised when a weak reference proxy, created by the