From ff8cff058b131d0f0781581d31abc1fd48206f5e Mon Sep 17 00:00:00 2001
From: Evan Strat <5790137+evan10s@users.noreply.github.com>
Date: Sat, 14 Nov 2020 16:37:47 -0500
Subject: [PATCH] Clarify that distances is initially empty

---
 skan/csr.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/skan/csr.py b/skan/csr.py
index 8b7545f4..b3944ce3 100644
--- a/skan/csr.py
+++ b/skan/csr.py
@@ -306,7 +306,8 @@ class Skeleton:
         The number of paths, P. This is redundant information given `n_paths`,
         but it is used often enough that it is worth keeping around.
     distances : array of float, shape (P,)
-        The distance of each path.
+        The distance of each path. Note: not initialized until `path_lengths()`
+        is called on the skeleton; use path_lengths() instead
     skeleton_image : array or None
         The input skeleton image. Only present if `keep_images` is True. Set to
         False to preserve memory.