def _gcc_compiler(output, compiler_exe="gcc"):
    try:
        _, out = _execute(compiler_exe % '%s -dumpversion')
        compiler = "gcc"
        installed_version = re.search("([0-9]\.[0-9])", out).group()
        if installed_version:
            output.success("Found %s %s" % (compiler, installed_version))
            return compiler, installed_version
    except:
        return None
dataset/ETHPy150Open conan-io/conan/conans/client/detect.py/_gcc_compiler/swapped operands of `%`