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Diffstat (limited to 'Doc/tutorial/datastructures.rst')
| -rw-r--r-- | Doc/tutorial/datastructures.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst index e42b380..927a672 100644 --- a/Doc/tutorial/datastructures.rst +++ b/Doc/tutorial/datastructures.rst @@ -659,10 +659,12 @@ More on Conditions The conditions used in ``while`` and ``if`` statements can contain any operators, not just comparisons. -The comparison operators ``in`` and ``not in`` check whether a value occurs -(does not occur) in a sequence. The operators ``is`` and ``is not`` compare -whether two objects are really the same object. All comparison operators have -the same priority, which is lower than that of all numerical operators. + +The comparison operators ``in`` and ``not in`` are membership tests that +determine whether a value is in (or not in) a container. The operators ``is`` +and ``is not`` compare whether two objects are really the same object. All +comparison operators have the same priority, which is lower than that of all +numerical operators. Comparisons can be chained. For example, ``a < b == c`` tests whether ``a`` is less than ``b`` and moreover ``b`` equals ``c``. |