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bpo-40614: Respect feature version for f-string debug expressions (GH-20196)

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Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
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Shantanu 2020-05-27 13:30:38 -07:00 • committed by GitHub
parent db5aed931f
commit c116c94ff1
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5
Parser/pegen/parse_string.c
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@ -928,6 +928,11 @@ fstring_find_expr(Parser *p, const char **str, const char *end, int raw, int rec
/* Check for =, which puts the text value of the expression in
expr_text. */
if (**str == '=') {
if (p->feature_version < 8) {
RAISE_SYNTAX_ERROR("f-string: self documenting expressions are "
"only supported in Python 3.8 and greater");
goto error;
}
*str += 1;
/* Skip over ASCII whitespace. No need to test for end of string