Remove workaround for numpy<1.16, and update version check.

anntzer · anntzer · commit e8d9ea33f1ba · 2021-02-11T19:49:59.000+01:00
We now require numpy 1.16 (per setup.py and NEP29).
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -145,7 +145,7 @@ def _check_versions():
             ("cycler", "0.10"),
             ("dateutil", "2.1"),
             ("kiwisolver", "1.0.1"),
-            ("numpy", "1.15"),
+            ("numpy", "1.16"),
             ("pyparsing", "2.0.1"),
     ]:
         module = importlib.import_module(modname)
diff --git a/lib/matplotlib/transforms.py b/lib/matplotlib/transforms.py
@@ -677,13 +677,10 @@ def union(bboxes):
         """Return a `Bbox` that contains all of the given *bboxes*."""
         if not len(bboxes):
             raise ValueError("'bboxes' cannot be empty")
-        # needed for 1.14.4 < numpy_version < 1.16
-        # can remove once we are at numpy >= 1.16
-        with np.errstate(invalid='ignore'):
-            x0 = np.min([bbox.xmin for bbox in bboxes])
-            x1 = np.max([bbox.xmax for bbox in bboxes])
-            y0 = np.min([bbox.ymin for bbox in bboxes])
-            y1 = np.max([bbox.ymax for bbox in bboxes])
+        x0 = np.min([bbox.xmin for bbox in bboxes])
+        x1 = np.max([bbox.xmax for bbox in bboxes])
+        y0 = np.min([bbox.ymin for bbox in bboxes])
+        y1 = np.max([bbox.ymax for bbox in bboxes])
         return Bbox([[x0, y0], [x1, y1]])
 
     @staticmethod
