updates

Backend/venv/lib/python3.12/site-packages/qrcode/image/pure.py

@@ -0,0 +1,54 @@
+from itertools import chain
+
+import png
+
+import qrcode.image.base
+
+
+class PyPNGImage(qrcode.image.base.BaseImage):
+    """
+    pyPNG image builder.
+    """
+
+    kind = "PNG"
+    allowed_kinds = ("PNG",)
+    needs_drawrect = False
+
+    def new_image(self, **kwargs):
+        return png.Writer(self.pixel_size, self.pixel_size, greyscale=True, bitdepth=1)
+
+    def drawrect(self, row, col):
+        """
+        Not used.
+        """
+
+    def save(self, stream, kind=None):
+        if isinstance(stream, str):
+            stream = open(stream, "wb")
+        self._img.write(stream, self.rows_iter())
+
+    def rows_iter(self):
+        yield from self.border_rows_iter()
+        border_col = [1] * (self.box_size * self.border)
+        for module_row in self.modules:
+            row = (
+                border_col
+                + list(
+                    chain.from_iterable(
+                        ([not point] * self.box_size) for point in module_row
+                    )
+                )
+                + border_col
+            )
+            for _ in range(self.box_size):
+                yield row
+        yield from self.border_rows_iter()
+
+    def border_rows_iter(self):
+        border_row = [1] * (self.box_size * (self.width + self.border * 2))
+        for _ in range(self.border * self.box_size):
+            yield border_row
+
+
+# Keeping this for backwards compatibility.
+PymagingImage = PyPNGImage