MNT: Make transforms.interval_contains_open private

Author: timhoffm

doc/api/next_api_changes/deprecations/30889-TH.rst

@@ -6,3 +6,4 @@ because they are considerer internal functionality and should not be used
 by end users:
 
 - ``matplotlib.transforms.nonsingular``
+- ``matplotlib.transforms.interval_contains_open``

lib/matplotlib/tests/test_transforms.py

@@ -1102,12 +1102,12 @@ def test_interval_contains():
 
 
 def test_interval_contains_open():
-    assert mtransforms.interval_contains_open((0, 1), 0.5)
-    assert not mtransforms.interval_contains_open((0, 1), 0)
-    assert not mtransforms.interval_contains_open((0, 1), 1)
-    assert not mtransforms.interval_contains_open((0, 1), -1)
-    assert not mtransforms.interval_contains_open((0, 1), 2)
-    assert mtransforms.interval_contains_open((1, 0), 0.5)
+    assert mtransforms._interval_contains_open((0, 1), 0.5)
+    assert not mtransforms._interval_contains_open((0, 1), 0)
+    assert not mtransforms._interval_contains_open((0, 1), 1)
+    assert not mtransforms._interval_contains_open((0, 1), -1)
+    assert not mtransforms._interval_contains_open((0, 1), 2)
+    assert mtransforms._interval_contains_open((1, 0), 0.5)
 
 
 def test_scaledrotation_initialization():

lib/matplotlib/transforms.py

@@ -2980,7 +2980,7 @@ def _interval_contains_close(interval, val, rtol=1e-10):
     return a - rtol <= val <= b + rtol
 
 
-def interval_contains_open(interval, val):
+def _interval_contains_open(interval, val):
     """
     Check, excluding endpoints, whether an interval includes a given value.
 
@@ -3000,6 +3000,12 @@ def interval_contains_open(interval, val):
     return a < val < b or a > val > b
 
 
+@_api.deprecated("3.11")
+def interval_contains_open(interval, val):
+    return _interval_contains_open(interval, val)
+_interval_contains_open.__doc__ = _interval_contains_open.__doc__
+
+
 def offset_copy(trans, fig=None, x=0.0, y=0.0, units='inches'):
     """
     Return a new transform with an added offset.

lib/matplotlib/transforms.pyi

@@ -331,6 +331,7 @@ def nonsingular(
     increasing: bool = ...,
 ) -> tuple[float, float]: ...
 def interval_contains(interval: tuple[float, float], val: float) -> bool: ...
+def _interval_contains_open(interval: tuple[float, float], val: float) -> bool: ...
 def interval_contains_open(interval: tuple[float, float], val: float) -> bool: ...
 def offset_copy(
     trans: Transform,