From 120356fb1d2a19b152a98a9b4ae482a0ef55907f Mon Sep 17 00:00:00 2001
From: Emily <vcs@emily.moe>
Date: Wed, 27 Aug 2025 19:32:07 +0100
Subject: [PATCH] librosa: add patch for Numba 0.62.0

---
 .../python-modules/librosa/default.nix        |  5 ++++
 .../librosa/fix-with-numba-0.62.0.patch       | 27 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 pkgs/development/python-modules/librosa/fix-with-numba-0.62.0.patch

diff --git a/pkgs/development/python-modules/librosa/default.nix b/pkgs/development/python-modules/librosa/default.nix
index 76740d890174..b1f19401b812 100644
--- a/pkgs/development/python-modules/librosa/default.nix
+++ b/pkgs/development/python-modules/librosa/default.nix
@@ -49,6 +49,11 @@ buildPythonPackage rec {
     hash = "sha256-T58J/Gi3tHzelr4enbYJi1KmO46QxE5Zlhkc0+EgvRg=";
   };
 
+  patches = [
+    # <https://github.com/librosa/librosa/pull/1977>
+    ./fix-with-numba-0.62.0.patch
+  ];
+
   build-system = [ setuptools ];
 
   dependencies = [
diff --git a/pkgs/development/python-modules/librosa/fix-with-numba-0.62.0.patch b/pkgs/development/python-modules/librosa/fix-with-numba-0.62.0.patch
new file mode 100644
index 000000000000..aac5a7855f79
--- /dev/null
+++ b/pkgs/development/python-modules/librosa/fix-with-numba-0.62.0.patch
@@ -0,0 +1,27 @@
+From 902bcca8cfc84801cf93a6c3ca59da283072a79f Mon Sep 17 00:00:00 2001
+From: Emily <hello@emily.moe>
+Date: Wed, 27 Aug 2025 18:58:07 +0100
+Subject: [PATCH] Fix types in beat tracking code
+
+The development version of Numba 0.62.0 is unhappy about `range`
+being applied to floating point values here.
+---
+ librosa/beat.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/librosa/beat.py b/librosa/beat.py
+index 1a19005d..4ed9e945 100644
+--- a/librosa/beat.py
++++ b/librosa/beat.py
+@@ -582,7 +582,7 @@ def __beat_track_dp(localscore, frames_per_beat, tightness, backlink, cumscore):
+         # Search over all possible predecessors to find the best preceding beat
+         # NOTE: to provide time-varying tempo estimates, we replace
+         # frames_per_beat[0] by frames_per_beat[i] in this loop body.
+-        for loc in range(i - np.round(frames_per_beat[tv * i] / 2), i - 2 * frames_per_beat[tv * i] - 1, - 1):
++        for loc in range(i - round(frames_per_beat[tv * i] / 2), int(i - 2 * frames_per_beat[tv * i] - 1), - 1):
+             # Once we're searching past the start, break out
+             if loc < 0:
+                 break
+-- 
+2.50.1
+