exception NameError Raised when a local or global name is not found. This applies only to unqualified names. The associated

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

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

exception ImportWarning Base class for warnings about probable mistakes in module imports.

exception Warning Base class for warning categories.

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

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

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

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.