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bpo-46270: Describe the `in` and `not in` operators as membership tests. (GH-30504)
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@ -659,10 +659,12 @@ More on Conditions
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The conditions used in ``while`` and ``if`` statements can contain any
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operators, not just comparisons.
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The comparison operators ``in`` and ``not in`` check whether a value occurs
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(does not occur) in a sequence. The operators ``is`` and ``is not`` compare
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whether two objects are really the same object. All comparison operators have
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the same priority, which is lower than that of all numerical operators.
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The comparison operators ``in`` and ``not in`` are membership tests that
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determine whether a value is in (or not in) a container. The operators ``is``
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and ``is not`` compare whether two objects are really the same object. All
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comparison operators have the same priority, which is lower than that of all
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numerical operators.
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Comparisons can be chained. For example, ``a < b == c`` tests whether ``a`` is
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less than ``b`` and moreover ``b`` equals ``c``.
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