Raised when a non-blocking operation fails because the resource is not ready. errno is EAGAIN, EALREADY, EWOULDBLOCK, or EINPROGRESS. The characters_written attribute gives bytes written before blocking.
BlockingIOError
python Raised when a non-blocking operation fails because the resource is not ready. errno is EAGAIN, EALREADY, EWOULDBLOCK, or EINPROGRESS. The characters_written attribute gives bytes written before blocking.