Message249445
Which note are you referring to? There are at least two mentioned in
this thread, the FAQ and a footnote in the docs for stdtypes.
If you're referring to the table of operations just below these:
https://docs.python.org/2/library/stdtypes.html#sequence-types-str-unicode-list-tuple-bytearray-buffer-xrange
https://docs.python.org/3/library/stdtypes.html#common-sequence-operations
where the docs say:
s * n, n * s n shallow copies of s concatenated
I think that could be worded better. It is too easy to misread it
as saying that the items of s are copied (as I just did now, despite
knowing that they aren't). I would word it:
repeat s n times and concatenate
which matches the common name of * as the sequence repetition operator,
and avoids using the word prone to misinterpretation, "copy".
Given how error-prone sequence repetition is, I'd add an example
directly in the table:
for example, [x]*3 returns [x, x, x] (note that x is not copied). |
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Date |
User |
Action |
Args |
2015-09-01 02:14:49 | steven.daprano | set | recipients:
+ steven.daprano, georg.brandl, r.david.murray, docs@python, matheus.v.portela, Abraham.Smith |
2015-09-01 02:14:49 | steven.daprano | link | issue23406 messages |
2015-09-01 02:14:48 | steven.daprano | create | |
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