From 780b0fcd9a372a448bdea76b66e24c8903c33bc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20Hamb=C3=BCchen?= <mail@nh2.me>
Date: Wed, 9 Jul 2025 02:34:36 +0200
Subject: [PATCH 1/4] pyhon3Packages.lazrs: init at 0.7.0

---
 .../python-modules/lazrs/default.nix          | 41 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 2 files changed, 43 insertions(+)
 create mode 100644 pkgs/development/python-modules/lazrs/default.nix

diff --git a/pkgs/development/python-modules/lazrs/default.nix b/pkgs/development/python-modules/lazrs/default.nix
new file mode 100644
index 000000000000..f0c24b250675
--- /dev/null
+++ b/pkgs/development/python-modules/lazrs/default.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchPypi,
+  rustPlatform,
+}:
+buildPythonPackage rec {
+  pname = "lazrs";
+  version = "0.7.0";
+
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-UxkbNRwdn6RfdEcWmDhL9CveFFmTCWRfudTDU/D7fyQ=";
+  };
+
+  nativeBuildInputs = [
+    rustPlatform.cargoSetupHook
+    rustPlatform.maturinBuildHook
+  ];
+
+  cargoDeps = rustPlatform.fetchCargoVendor {
+    inherit src;
+    inherit pname version;
+    hash = "sha256-GVb34eznC5/TA/SpvDq9uJ9M3nUTfx0KyfRFd4WUyCI=";
+  };
+
+  pythonImportsCheck = [ "lazrs" ];
+
+  meta = {
+    description = "Python bindings for laz-rs";
+    homepage = "https://github.com/laz-rs/laz-rs-python";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [
+      nh2
+      chpatrick
+    ];
+    teams = [ lib.teams.geospatial ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 98a11e205415..55a970b938fc 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7875,6 +7875,8 @@ self: super: with self; {
 
   lazr-uri = callPackage ../development/python-modules/lazr-uri { };
 
+  lazrs = callPackage ../development/python-modules/lazrs { };
+
   lazy = callPackage ../development/python-modules/lazy { };
 
   lazy-imports = callPackage ../development/python-modules/lazy-imports { };

From 9d672390889aff93743682a5cf5596c571cf1204 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20Hamb=C3=BCchen?= <mail@nh2.me>
Date: Wed, 9 Jul 2025 02:50:56 +0200
Subject: [PATCH 2/4] python3Packages.laspy: 2.5.3 -> 2.6.1

---
 pkgs/development/python-modules/laspy/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/laspy/default.nix b/pkgs/development/python-modules/laspy/default.nix
index 9e68b13137f5..44f1978bcc6e 100644
--- a/pkgs/development/python-modules/laspy/default.nix
+++ b/pkgs/development/python-modules/laspy/default.nix
@@ -11,14 +11,14 @@
 
 buildPythonPackage rec {
   pname = "laspy";
-  version = "2.5.4";
+  version = "2.6.1";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-7r2/M3mvvAsk5+SBL6xWe/+IDR6FH3AXXSI3Wq7N9+E=";
+    hash = "sha256-zpy5oYUosqK5hVg99ApN6mjN2nmV5H5LALbUjfDojao=";
   };
 
   nativeBuildInputs = [ setuptools ];

From 08160185c29d6e9864541be26655ea40a223cd4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20Hamb=C3=BCchen?= <mail@nh2.me>
Date: Wed, 9 Jul 2025 02:51:41 +0200
Subject: [PATCH 3/4] python3Packages.laspy: Add fast lazrs backend

Requires laspy >= 2.6.0 due to this fix:
https://github.com/laspy/laspy/commit/036c37e9e16e912c296147d20ecd6c638d7bac78

Older versions error:

    laspy.errors.LaspyException: Could not initialize a laz backend: LasZipAppender.__new__() missing 1 required positional argument: 'point_count'
---
 pkgs/development/python-modules/laspy/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/python-modules/laspy/default.nix b/pkgs/development/python-modules/laspy/default.nix
index 44f1978bcc6e..07211a842228 100644
--- a/pkgs/development/python-modules/laspy/default.nix
+++ b/pkgs/development/python-modules/laspy/default.nix
@@ -4,6 +4,7 @@
   fetchPypi,
   numpy,
   laszip,
+  lazrs,
   setuptools,
   pytestCheckHook,
   pythonOlder,
@@ -26,13 +27,17 @@ buildPythonPackage rec {
   propagatedBuildInputs = [
     numpy
     laszip
+    lazrs # much faster laz reading, see https://laspy.readthedocs.io/en/latest/installation.html#laz-support
   ];
 
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [
     "laspy"
+    # `laspy` supports multiple backends and detects them dynamically.
+    # We check their importability to make sure they are all working.
     "laszip"
+    "lazrs"
   ];
 
   meta = with lib; {

From cf6a766055141466fc231db238adb2af4917cb9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20Hamb=C3=BCchen?= <mail@nh2.me>
Date: Wed, 9 Jul 2025 12:47:05 +0200
Subject: [PATCH 4/4] python3Packages.laspy: Add geospatial team maintenance

---
 pkgs/development/python-modules/laspy/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/python-modules/laspy/default.nix b/pkgs/development/python-modules/laspy/default.nix
index 07211a842228..39057be18dcc 100644
--- a/pkgs/development/python-modules/laspy/default.nix
+++ b/pkgs/development/python-modules/laspy/default.nix
@@ -47,5 +47,6 @@ buildPythonPackage rec {
     changelog = "https://github.com/laspy/laspy/blob/${version}/CHANGELOG.md";
     license = licenses.bsd2;
     maintainers = with maintainers; [ matthewcroughan ];
+    teams = [ teams.geospatial ];
   };
 }