python3Packages.ocrmypdf: set version manually

pkgs/development/python-modules/ocrmypdf/default.nix

@@ -37,6 +37,8 @@ buildPythonPackage rec {
     sha256 = "sha256-g80WedX+TGHE9EJ/RSgOc53PM17V3WZslUNaHoqKTo0=";
   };
 
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
   patches = [
     (substituteAll {
       src = ./paths.patch;
@@ -73,6 +75,10 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  pythonImportsCheck = [
+    "ocrmypdf"
+  ];
+
   meta = with lib; {
     homepage = "https://github.com/jbarlow83/OCRmyPDF";
     description = "Adds an OCR text layer to scanned PDF files, allowing them to be searched";