11.8 Miscellaneous

• The socket module now exports all the needed constants used for socket operations, such as SO_BROADCAST.
• The functions popen() and fdopen() in the os module now follow the pattern of the built-in function open(): the default mode argument is 'r' and the optional third argument specifies the buffer size, where 0 means unbuffered, 1 means line-buffered, and any larger number means the size of the buffer in bytes.