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gh-134582: Fix t-strings untokenize() roundtrip removing space between braces #134603

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gh-134582: Fix t-strings untokenize() roundtrip removing space between braces #134603

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@loic-simon loic-simon commented May 23, 2025 •
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Avoid round-tripping t"{ {}}" (an interpolation with an empty dictionary) into t"{{}}" (two literal braces).

This extend the mechanism used in tokenize.Untokenizer.compat, to handle t-strings alongside f-strings.

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