Message 357781 - Python tracker

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Author	xtreak
Recipients	PranavSP, terry.reedy, xtreak
Date	2019-12-04.08:54:02
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1575449643.12.0.736707792606.issue38966@roundup.psfhosted.org>
In-reply-to

Content
This is same as doing the below with list1 getting a reference of list2. Assignments in Python don't copy the value but make a reference. This is not an issue specific to IDLE as tagged and has the same behaviour under a normal REPL. https://docs.python.org/3/reference/expressions.html#evaluation-order >>> list2 = [] >>> list1 = list2 >>> id(list2) 4487803136 >>> id(list1) 4487803136

This is same as doing the below with list1 getting a reference of list2. Assignments in Python don't copy the value but make a reference. This is not an issue specific to IDLE as tagged and has the same behaviour under a normal REPL.

https://docs.python.org/3/reference/expressions.html#evaluation-order

>>> list2 = []
>>> list1 = list2
>>> id(list2)
4487803136
>>> id(list1)
4487803136

History
Date	User	Action	Args
2019-12-04 08:54:03	xtreak	set	recipients: + xtreak, terry.reedy, PranavSP
2019-12-04 08:54:03	xtreak	set	messageid: <1575449643.12.0.736707792606.issue38966@roundup.psfhosted.org>
2019-12-04 08:54:03	xtreak	link	issue38966 messages
2019-12-04 08:54:02	xtreak	create