First public commit.

lenser/a2600/exporter.py

@@ -0,0 +1,12 @@
+"""Build an Atari 2600 cartridge (.a26) from a conversion."""
+from __future__ import annotations
+from .viewer.assemble import build_cart
+
+
+def export_a26(conv, output_path, source_path=None, display="forever", seconds=0):
+    if not output_path.lower().endswith((".a26", ".bin")):
+        output_path += ".a26"
+    rom = build_cart(conv.data, display=display, seconds=seconds)
+    with open(output_path, "wb") as f:
+        f.write(rom)
+    return output_path