How do I do time.sleep in certain thread in Python?

What is thread safety in Python?

• Answer:

  By thread-safety people usually mean whether a piece of code is re-entrant or not. That means if a function can be safely called again before the earlier function call has returned. Consider the append method of a Python List. If I have a List l = [1, 2, 3], can I safely call l.append(4) and l.append(5) from two different threads and get [1, 2, 3, 4, 5] (or [1, 2, 3, 5, 4]) in return? If yes, then the code is thread-safe. When people talk about Python's thread-safety in general, they mostly mean whether Python's basic data-structure operations are reentrant or not. Python's List data structure in the CPython implementation is, indeed, thread-safe. The same guarantee doesn't hold for other implementations. More here - http://en.wikipedia.org/wiki/Reentrant_code