ensure backward compat with py3.8

jacanchaplais · Mar 4, 2024 · 797b499 · 797b499
1 parent b56ab5f
commit 797b499
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diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -29,6 +29,18 @@ repos:
     hooks:
       - id: pyupgrade
         args: ["--py38-plus"]
+  - repo: https://github.com/netromdk/vermin
+    rev: v1.6.0
+    hooks:
+      - id: vermin
+        args: [
+          '-t=3.8-',
+          '--violations',
+          '--eval-annotations',
+          '--backports=typing',
+          '--backports=typing_extensions',
+          '--backports=enum',
+          ]
   - repo: https://github.com/PyCQA/autoflake
     rev: v2.1.1
     hooks:

diff --git a/graphicle/transform.py b/graphicle/transform.py
@@ -17,7 +17,7 @@
 _complex_unpack = op.attrgetter("real", "imag")
 
 
-def _cos_sin(angle: float) -> tuple[float, float]:
+def _cos_sin(angle: float) -> ty.Tuple[float, float]:
     """Returns a tuple containing the sine and cosine of an angle."""
     return _complex_unpack(cmath.rect(1.0, angle))