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Improve string indexing result explanation

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Vitor Santa Rosa 2020-11-28 23:25:16 -03:00
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@ -3554,7 +3554,7 @@ What makes those dictionaries become bloated? And why are newly created objects
* Few weird looking but semantically correct statements:
+ `[] = ()` is a semantically correct statement (unpacking an empty `tuple` into an empty `list`)
+ `'a'[0][0][0][0][0]` is also a semantically correct statement as strings are [sequences](https://docs.python.org/3/glossary.html#term-sequence)(iterables supporting element access using integer indices) in Python.
+ `'a'[0][0][0][0][0]` is also semantically correct, because Python doesn't have a character data type like other languages branched from C. So selecting a single character from a string returns a single-character string.
+ `3 --0-- 5 == 8` and `--5 == 5` are both semantically correct statements and evaluate to `True`.
* Given that `a` is a number, `++a` and `--a` are both valid Python statements but don't behave the same way as compared with similar statements in languages like C, C++, or Java.