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bpo-36817: Add f-string debugging using '='. (GH-13123)

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If a "=" is specified a the end of an f-string expression, the f-string will evaluate to the text of the expression, followed by '=', followed by the repr of the value of the expression.
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Eric V. Smith 2019-05-08 16:28:48 -04:00 • committed by GitHub
parent 65d98d0f53
commit 9a4135e939
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11 changed files with 286 additions and 49 deletions
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5
Python/ast_unparse.c
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@ -655,6 +655,11 @@ append_formattedvalue(_PyUnicodeWriter *writer, expr_ty e, bool is_format_spec)
}
Py_DECREF(temp_fv_str);
if (e->v.FormattedValue.expr_text) {
/* Use the = for debug text expansion. */
APPEND_STR("=");
}
if (e->v.FormattedValue.conversion > 0) {
switch (e->v.FormattedValue.conversion) {
case 'a':