Fixes formatting

Author: IvanChernyshov

src/pbcgraph/graph/__init__.py

@@ -8,9 +8,11 @@
 
 Two container families are provided:
 
-- :class:`~pbcgraph.graph.PeriodicDiGraph` / :class:`~pbcgraph.graph.PeriodicGraph`:
+- :class:`~pbcgraph.graph.PeriodicDiGraph` /
+  :class:`~pbcgraph.graph.PeriodicGraph`:
   at most one edge per ``(u, v, tvec)``.
-- :class:`~pbcgraph.graph.PeriodicMultiDiGraph` / :class:`~pbcgraph.graph.PeriodicMultiGraph`:
+- :class:`~pbcgraph.graph.PeriodicMultiDiGraph` /
+  :class:`~pbcgraph.graph.PeriodicMultiGraph`:
   allow multiple edges per ``(u, v, tvec)`` (distinguished by edge keys).
 """
 

src/pbcgraph/graph/directed.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+from types import MappingProxyType
 from typing import (
     TYPE_CHECKING,
     Any,
@@ -814,5 +815,3 @@ def lift_patch(
             node_order=node_order,
             edge_order=edge_order,
         )
-
-

src/pbcgraph/graph/multidirected.py

@@ -31,5 +31,3 @@ def add_edge(
     ) -> EdgeKey:
         """Add a directed periodic edge (parallel edges allowed)."""
         return self._add_edge_impl(u, v, tvec, key=key, attrs=dict(attrs))
-
-

src/pbcgraph/graph/undirected.py

@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from typing import Any, Dict, Iterable, List, Optional, Tuple
+from typing import Any, Dict, Iterable, List, Optional
 
 from pbcgraph.core.ordering import stable_tvec
 from pbcgraph.core.types import EdgeKey, NodeId, TVec, neg_tvec, validate_tvec
@@ -319,5 +319,3 @@ def check_invariants(self, *, strict: bool = False) -> Dict[str, Any]:
             'errors': errors,
             'n_edges': int(self._g.number_of_edges()),
         }
-
-

tests/alg/lift/test_lift_patch.py

@@ -1,7 +1,12 @@
 import networkx as nx
 import pytest
 
-from pbcgraph import PBC_META_KEY, PeriodicDiGraph, PeriodicGraph, PeriodicMultiGraph
+from pbcgraph import (
+    PBC_META_KEY,
+    PeriodicDiGraph,
+    PeriodicGraph,
+    PeriodicMultiGraph,
+)
 from pbcgraph.core.exceptions import LiftPatchError