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

exception BlockingIOError Raised when an operation would block on an object (e.g. socket) set for non-blocking operation. Corresponds

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

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

encoding The name of the encoding that raised the error.