From 2fe87635b523b577f586f1d25955d3bc87f7e2ec Mon Sep 17 00:00:00 2001
From: Johannes Arnold <johannes.arnold@stud.uni-hannover.de>
Date: Thu, 2 Sep 2021 23:53:45 +0200
Subject: [PATCH] python3Packages.file_read_backwards: init at 2.0.0

---
 pkgs/applications/misc/octoprint/plugins.nix  |  5 ++++-
 .../file-read-backwards/default.nix           | 22 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 ++
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/python-modules/file-read-backwards/default.nix

diff --git a/pkgs/applications/misc/octoprint/plugins.nix b/pkgs/applications/misc/octoprint/plugins.nix
index db84d691d510..ae82d4023247 100644
--- a/pkgs/applications/misc/octoprint/plugins.nix
+++ b/pkgs/applications/misc/octoprint/plugins.nix
@@ -431,7 +431,10 @@ in
       sha256 = "13q20g7brabplc198jh67lk65rn140r8217iak9b2jy3in8fggv4";
     };
 
-    propagatedBuildInputs = with super; [ awesome-slugify setuptools pillow sarge six psutil file_read_backwards ];
+    # Test fails due to code executed on import, see #136513
+    #pythonImportsCheck = [ "octoprint_octolapse" ];
+
+    propagatedBuildInputs = with super; [ awesome-slugify setuptools pillow sarge six psutil file-read-backwards ];
 
     meta = with lib; {
       description = "Stabilized timelapses for Octoprint";
diff --git a/pkgs/development/python-modules/file-read-backwards/default.nix b/pkgs/development/python-modules/file-read-backwards/default.nix
new file mode 100644
index 000000000000..80150a60de91
--- /dev/null
+++ b/pkgs/development/python-modules/file-read-backwards/default.nix
@@ -0,0 +1,22 @@
+{ lib, buildPythonPackage, fetchPypi, mock }:
+
+buildPythonPackage rec {
+  pname = "file-read-backwards";
+  version = "2.0.0";
+
+  src = fetchPypi {
+    pname = "file_read_backwards";
+    inherit version;
+    sha256 = "fd50d9089b412147ea3c6027e2ad905f977002db2918cf315d64eed23d6d6eb8";
+  };
+
+  checkInputs = [ mock ];
+  pythonImportsCheck = [ "file_read_backwards" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/RobinNil/file_read_backwards";
+    description = "Memory efficient way of reading files line-by-line from the end of file";
+    license = licenses.mit;
+    maintainers = with maintainers; [ j0hax ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index fc4e04501250..1cb3baeaf347 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2796,6 +2796,8 @@ in {
 
   fields = callPackage ../development/python-modules/fields { };
 
+  file-read-backwards = callPackage ../development/python-modules/file-read-backwards { };
+
   filebrowser_safe = callPackage ../development/python-modules/filebrowser_safe { };
 
   filebytes = callPackage ../development/python-modules/filebytes { };