fix flake8 and mypy

ffcx/codegeneration/definitions.py

@@ -8,7 +8,7 @@
 import logging
 
 import ufl
-from typing import List, Optional
+from typing import List
 import ffcx.codegeneration.lnodes as L
 from ffcx.ir.elementtables import UniqueTableReferenceT
 from ffcx.ir.representationutils import QuadratureRule
@@ -94,7 +94,8 @@ def get(self, mt, tabledata, quadrature_rule, access):
         # Call the handler
         return handler(mt, tabledata, quadrature_rule, access)
 
-    def coefficient(self, mt: ModifiedTerminal, tabledata: UniqueTableReferenceT, quadrature_rule: QuadratureRule, access: str):
+    def coefficient(self, mt: ModifiedTerminal, tabledata: UniqueTableReferenceT,
+                    quadrature_rule: QuadratureRule, access: str):
         """Return definition code for coefficients."""
         # For applying tensor product to coefficients, we need to know if the coefficient
         # has a tensor factorisation and if the quadrature rule has a tensor factorisation.

ffcx/codegeneration/integral_generator.py

@@ -301,7 +301,7 @@ def generate_partition(self, symbol, F, mode, quadrature_rule):
                     # Backend specific modified terminal translation
                     vaccess = self.backend.access.get(mt, tabledata, quadrature_rule)
                     predef, vdef = self.backend.definitions.get(mt, tabledata, quadrature_rule, vaccess)
-                    
+
                     if isinstance(predef, L.Section):
                         predef = predef.statements
 

ffcx/codegeneration/lnodes.py

@@ -4,7 +4,7 @@
 #
 # SPDX-License-Identifier:    LGPL-3.0-or-later
 
-from typing import List, Optional, Tuple
+from typing import List, Optional
 import numbers
 import ufl
 import numpy as np