threading.Thread.start should return self

I often write code like:

threads = []
for i in range(10):
  thread = threading.Thread(target=fn, args=(i,))
  thread.start()
  threads.append(thread)

for t in threads:
  t.join()

and would really prefer:

threads = [threading.Thread(target=fn, args=(i,)).start() for i in range(10)]

Is there a reason why start doesn't return self here: https://github.com/python/cpython/blob/3.10/Lib/threading.py#L940 ?

An alternative would be to add a start: bool = False param to the Thread constructor such that you can construct it with start=True. I'm not sure why you'd ever want to construct a Thread but not start it, so I wish that could default to true, but clearly it can't due to backwards compatibility.

Commencez dans Lib/threading.py, autour de Thread.start, référencé près de la ligne 940, et comparez le comportement de retour demandé avec l’alternative du constructeur indiquée dans l’issue. La tâche est terminée lorsque la conception de l’API est résolue et que le comportement qui en résulte est documenté sans casser l’utilisation existante de Thread.