queue.py: Tuples are not read back correctly

[ExperiMentor]

The elements seem to be returned in the wrong order:

print(q.qsize()) 0 q.put_nowait({"a", "b", "c", 42, 12}) print(q.qsize()) 1 print(q.get_nowait()) {12, 'a', 42, 'c', 'b'}

[peterhinch]

This has no connection with the Queue class. The object {"a", "b", "c", 42, 12} is a set not a tuple:

>>> type({"a", "b", "c", 42, 12})
<class 'set'>

Sets are not ordered therefore they may be printed in any order.

[ExperiMentor]

Sincere apologies. My fault entirely.

I've checked, and the queue function works exactly as expected with both tuples and lists:

Tuple (use parentheses): q.put_nowait(("a", "b", "c", 12, 17))

x=q.get_nowait() type(x) <class 'tuple'> print(x) ('a', 'b', 'c', 12, 17) print(x[0]) a print(x[3]) 12

List [use square brackets]

q.put_nowait(["a", "b", "c", 12, 17]) x=q.get_nowait() type(x) <class 'list'> print(x) ['a', 'b', 'c', 12, 17] print(x[0]) a print(x[3]) 12