Method is_constrained

qrcode/main.py:390–396

(self, row: int, col: int)

    # return true if and only if (row, col) is in the module
    def is_constrained(self, row: int, col: int) -> bool:
        return (
            row >= 0
            and row < len(self.modules)
            and col >= 0
            and col < len(self.modules[row])
        )

    def setup_timing_pattern(self):
        for r in range(8, self.modules_count - 8):