Update to v0.12.2

- Fixed cache key generation in `_create_cache_key()` to use `id()`

Author: networmix

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.12.2] - 2025-12-08
+
+### Fixed
+
+- **Cache key generation**: Use `id()` instead of `str()` for non-hashable kwargs in `_create_cache_key()` to avoid expensive `__repr__` traversals on large objects
+
 ## [0.12.1] - 2025-12-07
 
 ### Added

docs/reference/api-full.md

@@ -12,7 +12,7 @@ Quick links:
 - [CLI Reference](cli.md)
 - [DSL Reference](dsl.md)
 
-Generated from source code on: December 06, 2025 at 18:54 UTC
+Generated from source code on: December 07, 2025 at 00:13 UTC
 
 Modules auto-discovered: 44
 
@@ -262,7 +262,7 @@ Typical usage example:
 - `workflow` (List[WorkflowStep])
 - `failure_policy_set` (FailurePolicySet) = FailurePolicySet(policies={})
 - `traffic_matrix_set` (TrafficMatrixSet) = TrafficMatrixSet(matrices={})
-- `results` (Results) = Results(\_store={}, \_metadata={}, \_active_step=None, \_scenario={})
+- `results` (Results) = Results(_store={}, _metadata={}, _active_step=None, _scenario={})
 - `components_library` (ComponentsLibrary) = ComponentsLibrary(components={})
 - `seed` (Optional[int])
 

ngraph/_version.py

@@ -2,4 +2,4 @@
 
 __all__ = ["__version__"]
 
-__version__ = "0.12.1"
+__version__ = "0.12.2"

ngraph/exec/failure/manager.py

@@ -85,9 +85,10 @@ def _create_cache_key(
         if _is_hashable((key, value)):
             hashable_kwargs.append((key, value))
         else:
-            # For non-hashable values, use type name and a digest of a stable string
-            value_hash = hashlib.md5(str(value).encode()).hexdigest()[:8]
-            hashable_kwargs.append((key, f"{type(value).__name__}_{value_hash}"))
+            # Use object id for non-hashable values. Avoid str() which triggers
+            # deep __repr__ traversals on large objects (e.g., graphs with thousands
+            # of edges). id() works here because these objects persist across calls.
+            hashable_kwargs.append((key, f"{type(value).__name__}_{id(value)}"))
 
     return base_key + (tuple(hashable_kwargs),)
 

pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 # ---------------------------------------------------------------------
 [project]
 name = "ngraph"
-version = "0.12.1"
+version = "0.12.2"
 description = "A tool and a library for network modeling and analysis."
 readme = "README.md"
 authors = [{ name = "Andrey Golovanov" }]