From 763bd7675375b2d43b6e8a15fbd99ef32c68a088 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Sat, 16 Aug 2025 08:37:18 +0000
Subject: [PATCH] Checkpoint before follow-up message

Co-authored-by: anmolsinghmsd <anmolsinghmsd@gmail.com>
---
 movement/__init__.py      |  2 +-
 movement/io/save_poses.py |  2 +-
 movement/utils/vector.py  | 16 ++++++++++++++--
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/movement/__init__.py b/movement/__init__.py
index bf5d4a2d2..0b4fa0d69 100644
--- a/movement/__init__.py
+++ b/movement/__init__.py
@@ -6,7 +6,7 @@
     __version__ = version("movement")
 except PackageNotFoundError:
     # package is not installed
-    pass
+    __version__ = "0.0.0"
 
 # set xarray global options
 import xarray as xr
diff --git a/movement/io/save_poses.py b/movement/io/save_poses.py
index 52a0a4a7f..019d3f36a 100644
--- a/movement/io/save_poses.py
+++ b/movement/io/save_poses.py
@@ -216,7 +216,7 @@ def to_dlc_file(
             filepath = f"{file.path.with_suffix('')}_{key}{file.path.suffix}"
             if isinstance(df, pd.DataFrame):
                 _save_dlc_df(Path(filepath), df)
-            logger.info(f"Saved poses for individual {key} to {file.path}.")
+            logger.info(f"Saved poses for individual {key} to {filepath}.")
     else:
         # convert the dataset to a single dataframe for all individuals
         df_all = to_dlc_style_df(ds, split_individuals=False)
diff --git a/movement/utils/vector.py b/movement/utils/vector.py
index f633b1259..8d634603e 100644
--- a/movement/utils/vector.py
+++ b/movement/utils/vector.py
@@ -237,8 +237,20 @@ def compute_signed_angle_2d(
         v = v.squeeze()
         if v.ndim == 1:
             v_dims = ["space"]
+            v_coords = {"space": u.coords["space"]}
         elif v.ndim == 2:
-            v_dims = ["time", "space"]
+            # If a single time point is provided, treat as a 1D space vector
+            # so it can broadcast across the time dimension of ``u``
+            if v.shape[0] == 1:
+                v = v.squeeze(0)
+                v_dims = ["space"]
+                v_coords = {"space": u.coords["space"]}
+            else:
+                v_dims = ["time", "space"]
+                v_coords = {
+                    "time": u.coords["time"],
+                    "space": u.coords["space"],
+                }
         else:
             raise log_error(
                 ValueError,
@@ -247,7 +259,7 @@ def compute_signed_angle_2d(
         v = xr.DataArray(
             v,
             dims=v_dims,
-            coords={d: u.coords[d] for d in v_dims},
+            coords=v_coords,
         )
     elif not isinstance(v, xr.DataArray):
         raise log_error(