From e89cc48af9df1bdbf034d796f29c5e63a963c9f5 Mon Sep 17 00:00:00 2001
From: ljgray <liam.j.gray@usask.ca>
Date: Fri, 31 Mar 2023 16:36:34 -0700
Subject: [PATCH] fix(tools): keep invert_no_zero import

---
 draco/util/tools.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/draco/util/tools.py b/draco/util/tools.py
index d1a1b2ce2..eaa8095e1 100644
--- a/draco/util/tools.py
+++ b/draco/util/tools.py
@@ -8,6 +8,9 @@
 
 from ._fast_tools import _calc_redundancy
 
+# Keep this here for compatibility
+from caput.tools import invert_no_zero  # noqa: F401
+
 
 def cmap(i, j, n):
     """Given a pair of feed indices, return the pair index.