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--- python3_unpacking [2018/08/06 09:48]
jguerin
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-====== Unpacking Sequences ======
-Sequences can be explicitly/implicitly //unpacked// into discrete, ordered units of some type. Unpacking happens automatically using the '','' (comma). (The syntax is also used for [[python3_tuples|Tuple]] construction.)
-Unpacking works //only// in instances where the number of variables used //exactly// matches the number of items in the sequence.
-In the below examples parenthesis are not required, and are included for clarity.
-=====Lists/Tuples/Strings=====
-Unpacking a [[python3_lists|List]]
-<code python>
->>> seq = [1, 2, 3]
->>> (a, b, c) = seq  # a=1, b=2, c=3
-</code>
-=====In-Place Swap/Mutual Replacement=====
-Swapping objects.
-<code python>
->>> x = 1
->>> y = 2
->>> (x, y) = (y, x) # x=2, y=1
-</code>

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