From a07a6083423962a27c936940e6f6c75be9fac469 Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Thu, 16 Jun 2022 07:17:33 +0300
Subject: [PATCH 1/2] pythonPackages.pychm,python3Packages.pychm: init at 0.8.6

---
 .../python-modules/pychm/default.nix          | 27 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 ++
 2 files changed, 29 insertions(+)
 create mode 100644 pkgs/development/python-modules/pychm/default.nix

diff --git a/pkgs/development/python-modules/pychm/default.nix b/pkgs/development/python-modules/pychm/default.nix
new file mode 100644
index 000000000000..e9cc2c319fff
--- /dev/null
+++ b/pkgs/development/python-modules/pychm/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, chmlib
+}:
+
+buildPythonPackage rec {
+  pname = "pychm";
+  version = "0.8.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0wpn9ijlsmrpyiwg3drmgz4dms1i1i347adgqw37bkrh3vn6yq16";
+  };
+
+  buildInputs = [ chmlib ];
+
+  pythonImportsCheck = [ "chm" ];
+
+  meta = with lib; {
+    description = "Library to manipulate Microsoft HTML Help (CHM) files";
+    homepage = "https://github.com/dottedmag/pychm";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ alexshpilkin ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 4e4ab0660afb..d6108a7ffa29 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7084,6 +7084,8 @@ in {
 
   pychef = callPackage ../development/python-modules/pychef { };
 
+  pychm = callPackage ../development/python-modules/pychm { };
+
   PyChromecast = callPackage ../development/python-modules/pychromecast { };
 
   pyclimacell = callPackage ../development/python-modules/pyclimacell { };

From 7d883da22ad7c804fbc138652f868abfe60b0300 Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Thu, 16 Jun 2022 07:19:21 +0300
Subject: [PATCH 2/2] calibre: fix chm processing dependency

---
 pkgs/applications/misc/calibre/default.nix | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index 753be1eb88cf..d25998cb17b1 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -16,7 +16,6 @@
 , hunspell
 , hyphen
 , unrarSupport ? false
-, chmlib
 , python3Packages
 , libusb1
 , libmtp
@@ -66,7 +65,6 @@ mkDerivation rec {
   nativeBuildInputs = [ pkg-config qmake removeReferencesTo wrapGAppsHook ];
 
   buildInputs = [
-    chmlib
     fontconfig
     hunspell
     hyphen
@@ -102,6 +100,7 @@ mkDerivation rec {
       msgpack
       netifaces
       pillow
+      pychm
       pyqt-builder
       pyqt5
       python