Merge pull request #5189 from NixOS/almir

almir: pin the sqlalchemy version used by zope.sqlalchemy to 8

nixos/modules/services/backup/almir.nix

@@ -109,6 +109,7 @@ in {
       };
 
       sqlalchemy_engine_url = mkOption {
+        default = "postgresql:///bacula";
         example = ''
           postgresql://bacula:bacula@localhost:5432/bacula
           mysql+mysqlconnector://<user>:<password>@<hostname>/<database>'

pkgs/top-level/python-packages.nix

@@ -309,8 +309,8 @@ let
       self.transaction
       self.waitress
       self.webhelpers
-      self.zope_sqlalchemy
       self.psycopg2
+      (self.zope_sqlalchemy.override rec {propagatedBuildInputs = with self; [ sqlalchemy8 transaction ];})
     ];
 
     postInstall = ''