save as different image formats (pyvips)

speckles.py

@@ -1,5 +1,6 @@
 import itertools
 from pathlib import Path
+import pyvips
 import logging
 from perlin import CoordsGenerator
 import svg
@@ -253,8 +254,12 @@ def make_wallpaper(
         )
 
     content = svg.SVG(width=x, height=y, elements=elements)
-    with open(filename, "wt") as f:
-        f.write(content.as_str())
+    if Path(filename).suffix == ".svg":
+        with open(filename, "wt") as f:
+            f.write(content.as_str())
+    else:
+        with pyvips.Image.svgload_buffer(content.as_str().encode("utf-8")) as image:
+            image.write_to_file(filename)
 
 
 if __name__ == "__main__":
@@ -285,7 +290,7 @@ if __name__ == "__main__":
     make_wallpaper(
         ",".join(["#000000"] + palettes[0]["colours"]),
         orientation="2880x1920",
-        filename="testing.svg",
+        filename="testing.png",
         markers="tY.",
         size=3,
     )