From 4fe3788e5931cf3db3cf165c95b33d64bc612662 Mon Sep 17 00:00:00 2001
From: Leonardo Schwarz <leonardo.schwarz@fgcz.ethz.ch>
Date: Wed, 26 Nov 2025 17:23:23 +0100
Subject: [PATCH] mostly optional zeep

---
 bfabric/pyproject.toml                         | 3 +--
 bfabric/src/bfabric/bfabric.py                 | 4 +++-
 bfabric/src/bfabric/results/response_delete.py | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/bfabric/pyproject.toml b/bfabric/pyproject.toml
index e6be25bce..67c81f40e 100644
--- a/bfabric/pyproject.toml
+++ b/bfabric/pyproject.toml
@@ -21,18 +21,17 @@ dependencies = [
     "suds>=1.2.0,<2.0.0",
     "PyYAML>=6.0.2,<7.0",
     "rich>=14.0.0,<15.0.0",
-    "zeep>=4.3.2,<5.0",
     "polars-lts-cpu>=1.30,<2.0; platform_machine == 'x86_64' and platform_system == 'Darwin'",
     "polars>=1.30,<2.0; platform_machine != 'x86_64' or platform_system != 'Darwin'",
     "loguru>=0.7,<0.8",
     "pydantic>=2.9.2,<3.0",
-    "eval_type_backport; python_version < '3.10'",
     "python-dateutil>=2.9.0,<3.0",
     "requests>=2.27.0,<3.0",
     "httpx>=0.28.1,<0.29",
 ]
 
 [project.optional-dependencies]
+zeep = ["zeep>=4.3.2,<5.0"]
 dev = [
     "bfabric[doc,test]",
     "black",
diff --git a/bfabric/src/bfabric/bfabric.py b/bfabric/src/bfabric/bfabric.py
index cade214b8..1e63b6242 100644
--- a/bfabric/src/bfabric/bfabric.py
+++ b/bfabric/src/bfabric/bfabric.py
@@ -33,7 +33,6 @@
 from bfabric.config.config_data import ConfigData, load_config_data
 from bfabric.config.config_file import read_config_file
 from bfabric.engine.engine_suds import EngineSUDS
-from bfabric.engine.engine_zeep import EngineZeep
 from bfabric.rest.token_data import TokenData, get_token_data
 from bfabric.results.result_container import ResultContainer
 from bfabric.utils.cli_integration import DEFAULT_THEME, HostnameHighlighter
@@ -42,6 +41,7 @@
 if TYPE_CHECKING:
     from collections.abc import Generator
     from bfabric.entities.core.entity_reader import EntityReader
+    from bfabric.engine.engine_zeep import EngineZeep
 
 
 class Bfabric:
@@ -62,6 +62,8 @@ def _engine(self) -> EngineSUDS | EngineZeep:
         if self.config.engine == BfabricAPIEngineType.SUDS:
             return EngineSUDS(base_url=self._config.base_url)
         elif self.config.engine == BfabricAPIEngineType.ZEEP:
+            from bfabric.engine.engine_zeep import EngineZeep
+
             return EngineZeep(base_url=self._config.base_url)
         else:
             raise ValueError(f"Unexpected engine type: {self.config.engine}")
diff --git a/bfabric/src/bfabric/results/response_delete.py b/bfabric/src/bfabric/results/response_delete.py
index 03339e15e..be48e86a3 100644
--- a/bfabric/src/bfabric/results/response_delete.py
+++ b/bfabric/src/bfabric/results/response_delete.py
@@ -4,7 +4,6 @@
 from typing import Any
 
 from loguru import logger
-from zeep.helpers import serialize_object
 
 from bfabric.engine.response_format_suds import suds_asdict_recursive
 from bfabric.errors import BfabricRequestError
@@ -37,6 +36,8 @@ def from_suds(cls, suds_response: Any, endpoint: str) -> ResponseDelete:
     @classmethod
     def from_zeep(cls, zeep_response: Any, endpoint: str) -> ResponseDelete:
         """Creates a `ResponseDelete` from a ZEEP response."""
+        from zeep.helpers import serialize_object
+
         result_parsed = [dict(serialize_object(result, target_cls=dict)) for result in zeep_response[endpoint]]
         results, errors = cls.__convert_parsed_response(result_parsed)
         return cls(results=results, errors=errors, total_pages_api=None)