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Diffstat (limited to 'Doc/reference/lexical_analysis.rst')
| -rw-r--r-- | Doc/reference/lexical_analysis.rst | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Doc/reference/lexical_analysis.rst b/Doc/reference/lexical_analysis.rst index fb04ccc..13adc1a 100644 --- a/Doc/reference/lexical_analysis.rst +++ b/Doc/reference/lexical_analysis.rst @@ -680,11 +680,12 @@ with a closing curly bracket ``'}'``. Expressions in formatted string literals are treated like regular Python expressions surrounded by parentheses, with a few exceptions. -An empty expression is not allowed, and a :keyword:`lambda` expression -must be surrounded by explicit parentheses. Replacement expressions -can contain line breaks (e.g. in triple-quoted strings), but they -cannot contain comments. Each expression is evaluated in the context -where the formatted string literal appears, in order from left to right. +An empty expression is not allowed, and both :keyword:`lambda` and +assignment expressions ``:=`` must be surrounded by explicit parentheses. +Replacement expressions can contain line breaks (e.g. in triple-quoted +strings), but they cannot contain comments. Each expression is evaluated +in the context where the formatted string literal appears, in order from +left to right. If a conversion is specified, the result of evaluating the expression is converted before formatting. Conversion ``'!s'`` calls :func:`str` on |