exception PermissionError Raised when trying to run an operation without the adequate access rights - for example filesystem

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

exception ArithmeticError The base class for those built-in exceptions that are raised for various arithmetic errors:

exception BytesWarning Base class for warnings related to

exception MemoryError Raised when an operation runs out of memory but the situation may still be rescued (by deleting some objects)

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

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

exception Warning Base class for warning categories.

exception OSError([arg]) exception OSError(errno, strerror[, filename[, winerror[, filename2]]]) This exception

exception IsADirectoryError Raised when a file operation (such as