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| -rw-r--r-- | Doc/reference/expressions.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 863c3ce..bb25956 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -1061,7 +1061,7 @@ in s`` returns the negation of ``x in s``. All built-in sequences and set types support this as well as dictionary, for which :keyword:`in` tests whether a the dictionary has a given key. For container types such as list, tuple, set, frozenset, dict, or collections.deque, the expression ``x in y`` is equivalent -to ``any(x is e or x == e for val e in y)``. +to ``any(x is e or x == e for e in y)``. For the string and bytes types, ``x in y`` is true if and only if *x* is a substring of *y*. An equivalent test is ``y.find(x) != -1``. Empty strings are |