Add support for Python 3.13 (#328)

* fixes for Python 3.13

* allow newer manifold3d versions as the API has stabilized

* bump version number

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "scenic"
-version = "3.0.0"
+version = "3.1.0a1"
 description = "The Scenic scenario description language."
 authors = [
 	{ name = "Daniel Fremont" },
@@ -32,9 +32,9 @@ dependencies = [
 	"dotmap ~= 1.3",
 	"mapbox_earcut >= 0.12.10",
 	"matplotlib ~= 3.2",
-	"manifold3d == 2.3.0",
+	"manifold3d >= 2.5.1",
 	"networkx >= 2.6",
-	"numpy ~= 1.24",
+	"numpy >= 1.24",
 	"opencv-python ~= 4.5",
 	"pegen >= 0.3.0",
 	"pillow >= 9.1",

src/scenic/syntax/scenic.gram

@@ -2891,7 +2891,7 @@ invalid_while_stmt[NoReturn]:
         )
      }
 invalid_for_stmt[NoReturn]:
-    | [ASYNC] 'for' star_targets 'in' star_expressions NEWLINE { self.raise_syntax_error("expected ':'") }
+    | ['async'] 'for' star_targets 'in' star_expressions NEWLINE { self.raise_syntax_error("expected ':'") }
     | ['async'] a='for' star_targets 'in' star_expressions ':' NEWLINE !INDENT {
         self.raise_indentation_error(
             f"expected an indented block after 'for' statement on line {a.start[0]}"

tests/syntax/test_errors.py

@@ -374,7 +374,10 @@ def checkException(e, lines, program, bug, path, output, topLevel=True):
     chained = bool(e.__cause__ or (e.__context__ and not e.__suppress_context__))
     assert bool(remainingLines) == chained
     if remainingLines:
-        mid = loc - 5 if topLevel else loc - 2
+        if topLevel:
+            mid = loc - 6 if sys.version_info >= (3, 13) else loc - 5
+        else:
+            mid = loc - 2
         assert len(output) >= -(mid - 1)
     if e.__cause__:
         assert (