1 Lock file is a traditional means of synchronization among processes. In this
2 module it is implemented as an empty regular file exclusively locked using
3 fcntl.lockf. When it is to be released it is removed by default. However, if
4 all cooperating processes turn off the removal, they get a guaranteed order of
5 acquisitions and better scalability.
7 WWW: http://martin.horcicka.eu/python/lock_file/