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Tutorial: Update 5.1.2. Using Lists as Queues to include appendleft() #125138

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Tutorial: Update 5.1.2. Using Lists as Queues to include appendleft() #125138

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Update 5.1.2. Using Lists as Queues in python tutorial
AdityaKrishnaProjects Oct 8, 2024
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Merge branch 'main' into patch-1
AdityaKrishnaProjects Oct 8, 2024
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Merge branch 'main' into patch-1
AdityaKrishnaProjects Oct 25, 2024
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Merge branch 'main' into patch-1
StanFromIreland Dec 19, 2025
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3 changes: 3 additions & 0 deletions Doc/tutorial/datastructures.rst
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Expand Up @@ -187,6 +187,9 @@ have fast appends and pops from both ends. For example::
'John'
>>> queue # Remaining queue in order of arrival
deque(['Michael', 'Terry', 'Graham'])
>>> queue.appendleft("John") # John is added to front of queue
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@StanFromIreland StanFromIreland Dec 19, 2025

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>>> queue.appendleft("John") # John is added to front of queue
>>> queue.appendleft("John") # John never actually left, add him back

The comments describe a situation where people are coming/going.

>>> queue
deque(['John', 'Michael', 'Terry', 'Graham'])


.. _tut-listcomps:
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