minor fixes

qlasskit/ast2logic/t_expression.py

@@ -289,7 +289,7 @@ def unfold(v_exps, op):
             args_v = [b for (a, b) in args]
 
             q_gate = QuantumBooleanGate.build(gate)
-            
+
             if len(args_v) == 1 and isinstance(args_v[0], list):
                 return args[0][0], [q_gate(a) for a in args_v[0]]
             else:

qlasskit/boolquant.py

@@ -1,11 +1,24 @@
-from copy import deepcopy
+# Copyright 2023 Davide Gessa
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from sympy import Function
 from sympy.logic.boolalg import Boolean
 
 
 class QuantumBooleanGate(Function, Boolean):
     def build(name: str):
-        return type(name, (QuantumBooleanGate,), { }) 
+        return type(name, (QuantumBooleanGate,), {})
 
 
 class Q:

qlasskit/compiler/internalcompiler.py

@@ -131,7 +131,7 @@ def compile_expr(  # noqa: C901
         elif isinstance(expr, QuantumBooleanGate):
             erets = list(map(lambda e: self.compile_expr(qc, e), expr.args))  # type: ignore
             gate = expr.__class__.__name__.lower()
-            
+
             if hasattr(qc, gate):
                 if gate[0] == "m":
                     getattr(qc, gate)(erets[0:-1], erets[-1])