Terry J. Reedy <tjreedy@udel.edu> added the comment: Since threading is written in Python, one might expect Lock to be written in Python and its methods to accept keywords. However, threading.py (3.2) has _acquire_lock = _thread.acquire_lock Lock = _aquire_lock so threading.Lock objects are C-coded _thread.lock objects and hence *might* not accept keyword args. In 3.1: lock.acquire([waitflag]) # same 2.7 Lock.acquire(blocking=True) # [blocking=1] in 2.7 Indeed the first is correct.
from threading import Lock l=Lock() l.acquire(blocking=True) Traceback (most recent call last): File "<pyshell#2>", line 1, in <module> l.acquire(blocking=True) TypeError: acquire() takes no keyword arguments l.acquire(True) True
r87596, r87596 In 3.2: lock.acquire(waitflag=1, timeout=-1) Lock.acquire(blocking=True, timeout=-1) The edit in 3.2 is actually correct
from threading import Lock l=Lock() l.acquire(blocking=True) True l.acquire(timeout=1) False
_thread.lock.acquire now accepts keywords. ---------- assignee: docs@python -> terry.reedy nosy: +terry.reedy resolution: -> fixed stage: -> committed/rejected status: open -> closed _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue10789> _______________________________________