characters_written An integer containing the number of characters written to the stream before it blocked. This attribute is

exception ConnectionError A base class for connection-related issues. Subclasses are

end The index after the last invalid data in

exception BytesWarning Base class for warnings related to

exception LookupError The base class for the exceptions that are raised when a key or index used on a mapping or sequence is

exception ConnectionAbortedError A subclass of ConnectionError, raised when a connection attempt is aborted by

exception BrokenPipeError A subclass of ConnectionError, raised when trying to write on a pipe while the other

exception TabError Raised when indentation contains an inconsistent use of tabs and spaces. This is a subclass of Ind

exception RuntimeWarning Base class for warnings about dubious runtime behavior.

exception ProcessLookupError Raised when a given process doesn’t exist. Corresponds to errno ESRCH