A typo

V653 A suspicious string consisting of two parts is used for initialization. It is possible that a comma is missing. Consider inspecting this literal: "oct" "chr". pythonscanner.cpp 205

// List of python built-in functions and objects
static const QSet builtins = {
  "range", "xrange", "int", "float", "long", "hex", "oct" "chr", "ord",
  "len", "abs", "None", "True", "False"
};

Indeed, the programmer forgot to write a comma between literals "oct" and "chr", so the two have merged into one, "octchr", and it is this literal that QtCreator highlights:

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