From 0808fbf8a7f1da0d5b6531039b99e204ecd214ff Mon Sep 17 00:00:00 2001
From: Sebastian Castro <169091242+scastro-bdai@users.noreply.github.com>
Date: Thu, 19 Dec 2024 09:48:56 -0500
Subject: [PATCH] Fix string equality warnings in `SplineFit` class

We've started getting some loud warnings about using `is` instead of `==` when checking string values.

This small PR should resolve that.
---
 spatialmath/spline.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/spatialmath/spline.py b/spatialmath/spline.py
index 0a472ecc..8d30bd80 100644
--- a/spatialmath/spline.py
+++ b/spatialmath/spline.py
@@ -192,14 +192,14 @@ def stochastic_downsample_interpolation(
             )
 
             sample_time = self.time_data[candidate_removal_index]
-            if check_type is "local":
+            if check_type == "local":
                 angular_error = SO3(self.pose_data[candidate_removal_index]).angdist(
                     SO3(self.spline.spline_so3(sample_time).as_matrix())
                 )
                 euclidean_error = np.linalg.norm(
                     self.pose_data[candidate_removal_index].t - self.spline.spline_xyz(sample_time)
                 )
-            elif check_type is "global":
+            elif check_type == "global":
                 angular_error = self.max_angular_error()
                 euclidean_error = self.max_euclidean_error()
             else: